Home / 37,259.19-51,417.43-21,129.55

Finding the Fourth Proportional to 37,259.19, 51,417.43 and 21,129.55

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Solution

The fourth proportional to 37,259.19, 51,417.43 and 21,129.55 is: 29,158.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,259.19 : 51,417.43 = 21,129.55 : x
  2. Step 2: Convert to fraction form
    37,259.19/51,417.43 = 21,129.55/x
  3. Step 3: Cross multiply
    37,259.19x = 51,417.43 × 21,129.55
  4. Step 4: Simplify right side
    37,259.19x = 1,086,426,976.69
  5. Step 5: Solve for x
    x = 1,086,426,976.69/37,259.19
  6. Step 6: Final answer
    x = 29,158.63

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Half scale
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Double scale
Find fourth proportional to 37,260.19, 51,418.81 and 21,130.55
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.