Home / 39,323.38-54,265.98-21,418.32

Finding the Fourth Proportional to 39,323.38, 54,265.98 and 21,418.32

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Solution

The fourth proportional to 39,323.38, 54,265.98 and 21,418.32 is: 29,557.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,323.38 : 54,265.98 = 21,418.32 : x
  2. Step 2: Convert to fraction form
    39,323.38/54,265.98 = 21,418.32/x
  3. Step 3: Cross multiply
    39,323.38x = 54,265.98 × 21,418.32
  4. Step 4: Simplify right side
    39,323.38x = 1,162,286,124.75
  5. Step 5: Solve for x
    x = 1,162,286,124.75/39,323.38
  6. Step 6: Final answer
    x = 29,557.13

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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.