Home / 20,551.46-28,359.38-12,592.59

Finding the Fourth Proportional to 20,551.46, 28,359.38 and 12,592.59

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Solution

The fourth proportional to 20,551.46, 28,359.38 and 12,592.59 is: 17,376.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551.46 : 28,359.38 = 12,592.59 : x
  2. Step 2: Convert to fraction form
    20,551.46/28,359.38 = 12,592.59/x
  3. Step 3: Cross multiply
    20,551.46x = 28,359.38 × 12,592.59
  4. Step 4: Simplify right side
    20,551.46x = 357,117,982.03
  5. Step 5: Solve for x
    x = 357,117,982.03/20,551.46
  6. Step 6: Final answer
    x = 17,376.77

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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.