Home / 28,123.92-42,199.68-17,591.28

Finding the Fourth Proportional to 28,123.92, 42,199.68 and 17,591.28

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Solution

The fourth proportional to 28,123.92, 42,199.68 and 17,591.28 is: 26,395.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,123.92 : 42,199.68 = 17,591.28 : x
  2. Step 2: Convert to fraction form
    28,123.92/42,199.68 = 17,591.28/x
  3. Step 3: Cross multiply
    28,123.92x = 42,199.68 × 17,591.28
  4. Step 4: Simplify right side
    28,123.92x = 742,346,386.79
  5. Step 5: Solve for x
    x = 742,346,386.79/28,123.92
  6. Step 6: Final answer
    x = 26,395.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.