Home / 20,591.70-28,395.18-17,617.38

Finding the Fourth Proportional to 20,591.70, 28,395.18 and 17,617.38

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Solution

The fourth proportional to 20,591.70, 28,395.18 and 17,617.38 is: 24,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,591.70 : 28,395.18 = 17,617.38 : x
  2. Step 2: Convert to fraction form
    20,591.70/28,395.18 = 17,617.38/x
  3. Step 3: Cross multiply
    20,591.70x = 28,395.18 × 17,617.38
  4. Step 4: Simplify right side
    20,591.70x = 500,248,676.23
  5. Step 5: Solve for x
    x = 500,248,676.23/20,591.70
  6. Step 6: Final answer
    x = 24,293.70

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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.