Home / 27,603.66-38,070.90-18,042.78

Finding the Fourth Proportional to 27,603.66, 38,070.90 and 18,042.78

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Solution

The fourth proportional to 27,603.66, 38,070.90 and 18,042.78 is: 24,884.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,603.66 : 38,070.90 = 18,042.78 : x
  2. Step 2: Convert to fraction form
    27,603.66/38,070.90 = 18,042.78/x
  3. Step 3: Cross multiply
    27,603.66x = 38,070.90 × 18,042.78
  4. Step 4: Simplify right side
    27,603.66x = 686,904,873.10
  5. Step 5: Solve for x
    x = 686,904,873.10/27,603.66
  6. Step 6: Final answer
    x = 24,884.56

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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.