Home / 20,558.08-28,356.70-14,517.18

Finding the Fourth Proportional to 20,558.08, 28,356.70 and 14,517.18

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Solution

The fourth proportional to 20,558.08, 28,356.70 and 14,517.18 is: 20,024.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.08 : 28,356.70 = 14,517.18 : x
  2. Step 2: Convert to fraction form
    20,558.08/28,356.70 = 14,517.18/x
  3. Step 3: Cross multiply
    20,558.08x = 28,356.70 × 14,517.18
  4. Step 4: Simplify right side
    20,558.08x = 411,659,318.11
  5. Step 5: Solve for x
    x = 411,659,318.11/20,558.08
  6. Step 6: Final answer
    x = 20,024.21

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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.