Home / 42,689.62-64,037.15-17,731.70

Finding the Fourth Proportional to 42,689.62, 64,037.15 and 17,731.70

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Solution

The fourth proportional to 42,689.62, 64,037.15 and 17,731.70 is: 26,598.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,689.62 : 64,037.15 = 17,731.70 : x
  2. Step 2: Convert to fraction form
    42,689.62/64,037.15 = 17,731.70/x
  3. Step 3: Cross multiply
    42,689.62x = 64,037.15 × 17,731.70
  4. Step 4: Simplify right side
    42,689.62x = 1,135,487,256.80
  5. Step 5: Solve for x
    x = 1,135,487,256.80/42,689.62
  6. Step 6: Final answer
    x = 26,598.67

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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.