Home / 20,451.24-28,188.72-14,475.24

Finding the Fourth Proportional to 20,451.24, 28,188.72 and 14,475.24

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Solution

The fourth proportional to 20,451.24, 28,188.72 and 14,475.24 is: 19,951.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451.24 : 28,188.72 = 14,475.24 : x
  2. Step 2: Convert to fraction form
    20,451.24/28,188.72 = 14,475.24/x
  3. Step 3: Cross multiply
    20,451.24x = 28,188.72 × 14,475.24
  4. Step 4: Simplify right side
    20,451.24x = 408,038,487.29
  5. Step 5: Solve for x
    x = 408,038,487.29/20,451.24
  6. Step 6: Final answer
    x = 19,951.77

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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.