Home / 40,830.43-61,252.80-18,646.04

Finding the Fourth Proportional to 40,830.43, 61,252.80 and 18,646.04

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Solution

The fourth proportional to 40,830.43, 61,252.80 and 18,646.04 is: 27,972.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,830.43 : 61,252.80 = 18,646.04 : x
  2. Step 2: Convert to fraction form
    40,830.43/61,252.80 = 18,646.04/x
  3. Step 3: Cross multiply
    40,830.43x = 61,252.80 × 18,646.04
  4. Step 4: Simplify right side
    40,830.43x = 1,142,122,158.91
  5. Step 5: Solve for x
    x = 1,142,122,158.91/40,830.43
  6. Step 6: Final answer
    x = 27,972.33

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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.