Home / 28,542.60-39,426.44-21,910.18

Finding the Fourth Proportional to 28,542.60, 39,426.44 and 21,910.18

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Solution

The fourth proportional to 28,542.60, 39,426.44 and 21,910.18 is: 30,264.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,542.60 : 39,426.44 = 21,910.18 : x
  2. Step 2: Convert to fraction form
    28,542.60/39,426.44 = 21,910.18/x
  3. Step 3: Cross multiply
    28,542.60x = 39,426.44 × 21,910.18
  4. Step 4: Simplify right side
    28,542.60x = 863,840,397.16
  5. Step 5: Solve for x
    x = 863,840,397.16/28,542.60
  6. Step 6: Final answer
    x = 30,264.95

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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.