Home / 37,261.19-51,420.19-21,131.55

Finding the Fourth Proportional to 37,261.19, 51,420.19 and 21,131.55

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Solution

The fourth proportional to 37,261.19, 51,420.19 and 21,131.55 is: 29,161.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,261.19 : 51,420.19 = 21,131.55 : x
  2. Step 2: Convert to fraction form
    37,261.19/51,420.19 = 21,131.55/x
  3. Step 3: Cross multiply
    37,261.19x = 51,420.19 × 21,131.55
  4. Step 4: Simplify right side
    37,261.19x = 1,086,588,315.99
  5. Step 5: Solve for x
    x = 1,086,588,315.99/37,261.19
  6. Step 6: Final answer
    x = 29,161.40

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Double scale
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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.