Home / 23,139.54-31,930.73-13,068.97

Finding the Fourth Proportional to 23,139.54, 31,930.73 and 13,068.97

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Solution

The fourth proportional to 23,139.54, 31,930.73 and 13,068.97 is: 18,034.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,139.54 : 31,930.73 = 13,068.97 : x
  2. Step 2: Convert to fraction form
    23,139.54/31,930.73 = 13,068.97/x
  3. Step 3: Cross multiply
    23,139.54x = 31,930.73 × 13,068.97
  4. Step 4: Simplify right side
    23,139.54x = 417,301,560.12
  5. Step 5: Solve for x
    x = 417,301,560.12/23,139.54
  6. Step 6: Final answer
    x = 18,034.13

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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.