Home / 42,009.97-57,971.08-23,147.09

Finding the Fourth Proportional to 42,009.97, 57,971.08 and 23,147.09

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Solution

The fourth proportional to 42,009.97, 57,971.08 and 23,147.09 is: 31,941.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,009.97 : 57,971.08 = 23,147.09 : x
  2. Step 2: Convert to fraction form
    42,009.97/57,971.08 = 23,147.09/x
  3. Step 3: Cross multiply
    42,009.97x = 57,971.08 × 23,147.09
  4. Step 4: Simplify right side
    42,009.97x = 1,341,861,806.16
  5. Step 5: Solve for x
    x = 1,341,861,806.16/42,009.97
  6. Step 6: Final answer
    x = 31,941.51

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Double scale
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Similar ratio
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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.