Home / 20,616.08-28,456.92-14,665.04

Finding the Fourth Proportional to 20,616.08, 28,456.92 and 14,665.04

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Solution

The fourth proportional to 20,616.08, 28,456.92 and 14,665.04 is: 20,242.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616.08 : 28,456.92 = 14,665.04 : x
  2. Step 2: Convert to fraction form
    20,616.08/28,456.92 = 14,665.04/x
  3. Step 3: Cross multiply
    20,616.08x = 28,456.92 × 14,665.04
  4. Step 4: Simplify right side
    20,616.08x = 417,321,870.08
  5. Step 5: Solve for x
    x = 417,321,870.08/20,616.08
  6. Step 6: Final answer
    x = 20,242.54

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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.