Home / 39,312.59-54,250.11-21,407.45

Finding the Fourth Proportional to 39,312.59, 54,250.11 and 21,407.45

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Solution

The fourth proportional to 39,312.59, 54,250.11 and 21,407.45 is: 29,541.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,312.59 : 54,250.11 = 21,407.45 : x
  2. Step 2: Convert to fraction form
    39,312.59/54,250.11 = 21,407.45/x
  3. Step 3: Cross multiply
    39,312.59x = 54,250.11 × 21,407.45
  4. Step 4: Simplify right side
    39,312.59x = 1,161,356,517.32
  5. Step 5: Solve for x
    x = 1,161,356,517.32/39,312.59
  6. Step 6: Final answer
    x = 29,541.59

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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.