Home / 31,160.60-43,001.72-17,013.68

Finding the Fourth Proportional to 31,160.60, 43,001.72 and 17,013.68

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Solution

The fourth proportional to 31,160.60, 43,001.72 and 17,013.68 is: 23,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,160.60 : 43,001.72 = 17,013.68 : x
  2. Step 2: Convert to fraction form
    31,160.60/43,001.72 = 17,013.68/x
  3. Step 3: Cross multiply
    31,160.60x = 43,001.72 × 17,013.68
  4. Step 4: Simplify right side
    31,160.60x = 731,617,503.53
  5. Step 5: Solve for x
    x = 731,617,503.53/31,160.60
  6. Step 6: Final answer
    x = 23,478.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.