Home / 37,140.47-51,257.35-21,221.83

Finding the Fourth Proportional to 37,140.47, 51,257.35 and 21,221.83

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Solution

The fourth proportional to 37,140.47, 51,257.35 and 21,221.83 is: 29,288.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,140.47 : 51,257.35 = 21,221.83 : x
  2. Step 2: Convert to fraction form
    37,140.47/51,257.35 = 21,221.83/x
  3. Step 3: Cross multiply
    37,140.47x = 51,257.35 × 21,221.83
  4. Step 4: Simplify right side
    37,140.47x = 1,087,774,767.95
  5. Step 5: Solve for x
    x = 1,087,774,767.95/37,140.47
  6. Step 6: Final answer
    x = 29,288.13

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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.