Home / 42,690.38-64,038.29-17,732.45

Finding the Fourth Proportional to 42,690.38, 64,038.29 and 17,732.45

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Solution

The fourth proportional to 42,690.38, 64,038.29 and 17,732.45 is: 26,599.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,690.38 : 64,038.29 = 17,732.45 : x
  2. Step 2: Convert to fraction form
    42,690.38/64,038.29 = 17,732.45/x
  3. Step 3: Cross multiply
    42,690.38x = 64,038.29 × 17,732.45
  4. Step 4: Simplify right side
    42,690.38x = 1,135,555,366.66
  5. Step 5: Solve for x
    x = 1,135,555,366.66/42,690.38
  6. Step 6: Final answer
    x = 26,599.80

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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.