Home / 39,312.52-54,250.50-21,407.74

Finding the Fourth Proportional to 39,312.52, 54,250.50 and 21,407.74

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Solution

The fourth proportional to 39,312.52, 54,250.50 and 21,407.74 is: 29,542.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,312.52 : 54,250.50 = 21,407.74 : x
  2. Step 2: Convert to fraction form
    39,312.52/54,250.50 = 21,407.74/x
  3. Step 3: Cross multiply
    39,312.52x = 54,250.50 × 21,407.74
  4. Step 4: Simplify right side
    39,312.52x = 1,161,380,598.87
  5. Step 5: Solve for x
    x = 1,161,380,598.87/39,312.52
  6. Step 6: Final answer
    x = 29,542.26

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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.