Home / 21,022.18-29,007.45-12,070.06

Finding the Fourth Proportional to 21,022.18, 29,007.45 and 12,070.06

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Solution

The fourth proportional to 21,022.18, 29,007.45 and 12,070.06 is: 16,654.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.18 : 29,007.45 = 12,070.06 : x
  2. Step 2: Convert to fraction form
    21,022.18/29,007.45 = 12,070.06/x
  3. Step 3: Cross multiply
    21,022.18x = 29,007.45 × 12,070.06
  4. Step 4: Simplify right side
    21,022.18x = 350,121,661.95
  5. Step 5: Solve for x
    x = 350,121,661.95/21,022.18
  6. Step 6: Final answer
    x = 16,654.87

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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.