Home / 15,565.20-23,430.87-13,957.75

Finding the Fourth Proportional to 15,565.20, 23,430.87 and 13,957.75

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Solution

The fourth proportional to 15,565.20, 23,430.87 and 13,957.75 is: 21,011.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,565.20 : 23,430.87 = 13,957.75 : x
  2. Step 2: Convert to fraction form
    15,565.20/23,430.87 = 13,957.75/x
  3. Step 3: Cross multiply
    15,565.20x = 23,430.87 × 13,957.75
  4. Step 4: Simplify right side
    15,565.20x = 327,042,225.74
  5. Step 5: Solve for x
    x = 327,042,225.74/15,565.20
  6. Step 6: Final answer
    x = 21,011.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.