Home / 40,869.60-61,304.40-13,167.60

Finding the Fourth Proportional to 40,869.60, 61,304.40 and 13,167.60

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Solution

The fourth proportional to 40,869.60, 61,304.40 and 13,167.60 is: 19,751.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,869.60 : 61,304.40 = 13,167.60 : x
  2. Step 2: Convert to fraction form
    40,869.60/61,304.40 = 13,167.60/x
  3. Step 3: Cross multiply
    40,869.60x = 61,304.40 × 13,167.60
  4. Step 4: Simplify right side
    40,869.60x = 807,231,817.44
  5. Step 5: Solve for x
    x = 807,231,817.44/40,869.60
  6. Step 6: Final answer
    x = 19,751.40

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1.5x scale

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.