Home / 20,432.66-28,200.34-19,098.58

Finding the Fourth Proportional to 20,432.66, 28,200.34 and 19,098.58

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Solution

The fourth proportional to 20,432.66, 28,200.34 and 19,098.58 is: 26,359.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,432.66 : 28,200.34 = 19,098.58 : x
  2. Step 2: Convert to fraction form
    20,432.66/28,200.34 = 19,098.58/x
  3. Step 3: Cross multiply
    20,432.66x = 28,200.34 × 19,098.58
  4. Step 4: Simplify right side
    20,432.66x = 538,586,449.52
  5. Step 5: Solve for x
    x = 538,586,449.52/20,432.66
  6. Step 6: Final answer
    x = 26,359.10

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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.