Home / 42,154.09-63,251.82-18,458.42

Finding the Fourth Proportional to 42,154.09, 63,251.82 and 18,458.42

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Solution

The fourth proportional to 42,154.09, 63,251.82 and 18,458.42 is: 27,696.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,154.09 : 63,251.82 = 18,458.42 : x
  2. Step 2: Convert to fraction form
    42,154.09/63,251.82 = 18,458.42/x
  3. Step 3: Cross multiply
    42,154.09x = 63,251.82 × 18,458.42
  4. Step 4: Simplify right side
    42,154.09x = 1,167,528,343.07
  5. Step 5: Solve for x
    x = 1,167,528,343.07/42,154.09
  6. Step 6: Final answer
    x = 27,696.68

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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.