Home / 20,483.28-28,260.36-12,098.16

Finding the Fourth Proportional to 20,483.28, 28,260.36 and 12,098.16

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Solution

The fourth proportional to 20,483.28, 28,260.36 and 12,098.16 is: 16,691.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.28 : 28,260.36 = 12,098.16 : x
  2. Step 2: Convert to fraction form
    20,483.28/28,260.36 = 12,098.16/x
  3. Step 3: Cross multiply
    20,483.28x = 28,260.36 × 12,098.16
  4. Step 4: Simplify right side
    20,483.28x = 341,898,356.94
  5. Step 5: Solve for x
    x = 341,898,356.94/20,483.28
  6. Step 6: Final answer
    x = 16,691.58

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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.