Home / 21,301.47-31,951.19-7,260.93

Finding the Fourth Proportional to 21,301.47, 31,951.19 and 7,260.93

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Solution

The fourth proportional to 21,301.47, 31,951.19 and 7,260.93 is: 10,891.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,301.47 : 31,951.19 = 7,260.93 : x
  2. Step 2: Convert to fraction form
    21,301.47/31,951.19 = 7,260.93/x
  3. Step 3: Cross multiply
    21,301.47x = 31,951.19 × 7,260.93
  4. Step 4: Simplify right side
    21,301.47x = 231,995,372.16
  5. Step 5: Solve for x
    x = 231,995,372.16/21,301.47
  6. Step 6: Final answer
    x = 10,891.05

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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.