Home / 21,934.22-32,905.76-7,139.16

Finding the Fourth Proportional to 21,934.22, 32,905.76 and 7,139.16

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Solution

The fourth proportional to 21,934.22, 32,905.76 and 7,139.16 is: 10,710.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,934.22 : 32,905.76 = 7,139.16 : x
  2. Step 2: Convert to fraction form
    21,934.22/32,905.76 = 7,139.16/x
  3. Step 3: Cross multiply
    21,934.22x = 32,905.76 × 7,139.16
  4. Step 4: Simplify right side
    21,934.22x = 234,919,449.87
  5. Step 5: Solve for x
    x = 234,919,449.87/21,934.22
  6. Step 6: Final answer
    x = 10,710.18

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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.