Home / 39,312.73-54,251.26-21,407.73

Finding the Fourth Proportional to 39,312.73, 54,251.26 and 21,407.73

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Solution

The fourth proportional to 39,312.73, 54,251.26 and 21,407.73 is: 29,542.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,312.73 : 54,251.26 = 21,407.73 : x
  2. Step 2: Convert to fraction form
    39,312.73/54,251.26 = 21,407.73/x
  3. Step 3: Cross multiply
    39,312.73x = 54,251.26 × 21,407.73
  4. Step 4: Simplify right side
    39,312.73x = 1,161,396,326.24
  5. Step 5: Solve for x
    x = 1,161,396,326.24/39,312.73
  6. Step 6: Final answer
    x = 29,542.50

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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.