Home / 37,470.78-51,711.64-21,557.62

Finding the Fourth Proportional to 37,470.78, 51,711.64 and 21,557.62

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Solution

The fourth proportional to 37,470.78, 51,711.64 and 21,557.62 is: 29,750.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,470.78 : 51,711.64 = 21,557.62 : x
  2. Step 2: Convert to fraction form
    37,470.78/51,711.64 = 21,557.62/x
  3. Step 3: Cross multiply
    37,470.78x = 51,711.64 × 21,557.62
  4. Step 4: Simplify right side
    37,470.78x = 1,114,779,884.70
  5. Step 5: Solve for x
    x = 1,114,779,884.70/37,470.78
  6. Step 6: Final answer
    x = 29,750.65

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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.