Home / 20,276.52-28,000.92-19,172.16

Finding the Fourth Proportional to 20,276.52, 28,000.92 and 19,172.16

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Solution

The fourth proportional to 20,276.52, 28,000.92 and 19,172.16 is: 26,475.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276.52 : 28,000.92 = 19,172.16 : x
  2. Step 2: Convert to fraction form
    20,276.52/28,000.92 = 19,172.16/x
  3. Step 3: Cross multiply
    20,276.52x = 28,000.92 × 19,172.16
  4. Step 4: Simplify right side
    20,276.52x = 536,838,118.39
  5. Step 5: Solve for x
    x = 536,838,118.39/20,276.52
  6. Step 6: Final answer
    x = 26,475.85

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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.