Home / 42,583.57-63,865.23-18,878.11

Finding the Fourth Proportional to 42,583.57, 63,865.23 and 18,878.11

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Solution

The fourth proportional to 42,583.57, 63,865.23 and 18,878.11 is: 28,312.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,583.57 : 63,865.23 = 18,878.11 : x
  2. Step 2: Convert to fraction form
    42,583.57/63,865.23 = 18,878.11/x
  3. Step 3: Cross multiply
    42,583.57x = 63,865.23 × 18,878.11
  4. Step 4: Simplify right side
    42,583.57x = 1,205,654,837.12
  5. Step 5: Solve for x
    x = 1,205,654,837.12/42,583.57
  6. Step 6: Final answer
    x = 28,312.68

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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.