Home / 23,990.16-32,930.25-21,278.28

Finding the Fourth Proportional to 23,990.16, 32,930.25 and 21,278.28

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Solution

The fourth proportional to 23,990.16, 32,930.25 and 21,278.28 is: 29,207.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,990.16 : 32,930.25 = 21,278.28 : x
  2. Step 2: Convert to fraction form
    23,990.16/32,930.25 = 21,278.28/x
  3. Step 3: Cross multiply
    23,990.16x = 32,930.25 × 21,278.28
  4. Step 4: Simplify right side
    23,990.16x = 700,699,079.97
  5. Step 5: Solve for x
    x = 700,699,079.97/23,990.16
  6. Step 6: Final answer
    x = 29,207.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.