Home / 39,830.76-54,966.18-21,925.29

Finding the Fourth Proportional to 39,830.76, 54,966.18 and 21,925.29

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Solution

The fourth proportional to 39,830.76, 54,966.18 and 21,925.29 is: 30,256.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,830.76 : 54,966.18 = 21,925.29 : x
  2. Step 2: Convert to fraction form
    39,830.76/54,966.18 = 21,925.29/x
  3. Step 3: Cross multiply
    39,830.76x = 54,966.18 × 21,925.29
  4. Step 4: Simplify right side
    39,830.76x = 1,205,149,436.69
  5. Step 5: Solve for x
    x = 1,205,149,436.69/39,830.76
  6. Step 6: Final answer
    x = 30,256.75

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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.