Home / 21,032.20-31,489.96-10,622.08

Finding the Fourth Proportional to 21,032.20, 31,489.96 and 10,622.08

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Solution

The fourth proportional to 21,032.20, 31,489.96 and 10,622.08 is: 15,903.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032.20 : 31,489.96 = 10,622.08 : x
  2. Step 2: Convert to fraction form
    21,032.20/31,489.96 = 10,622.08/x
  3. Step 3: Cross multiply
    21,032.20x = 31,489.96 × 10,622.08
  4. Step 4: Simplify right side
    21,032.20x = 334,488,874.32
  5. Step 5: Solve for x
    x = 334,488,874.32/21,032.20
  6. Step 6: Final answer
    x = 15,903.66

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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.