Home / 39,539.16-54,565.40-21,634.17

Finding the Fourth Proportional to 39,539.16, 54,565.40 and 21,634.17

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Solution

The fourth proportional to 39,539.16, 54,565.40 and 21,634.17 is: 29,855.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,539.16 : 54,565.40 = 21,634.17 : x
  2. Step 2: Convert to fraction form
    39,539.16/54,565.40 = 21,634.17/x
  3. Step 3: Cross multiply
    39,539.16x = 54,565.40 × 21,634.17
  4. Step 4: Simplify right side
    39,539.16x = 1,180,477,139.72
  5. Step 5: Solve for x
    x = 1,180,477,139.72/39,539.16
  6. Step 6: Final answer
    x = 29,855.90

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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.