Home / 27,101.24-40,645.14-18,390.20

Finding the Fourth Proportional to 27,101.24, 40,645.14 and 18,390.20

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Solution

The fourth proportional to 27,101.24, 40,645.14 and 18,390.20 is: 27,580.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,101.24 : 40,645.14 = 18,390.20 : x
  2. Step 2: Convert to fraction form
    27,101.24/40,645.14 = 18,390.20/x
  3. Step 3: Cross multiply
    27,101.24x = 40,645.14 × 18,390.20
  4. Step 4: Simplify right side
    27,101.24x = 747,472,253.63
  5. Step 5: Solve for x
    x = 747,472,253.63/27,101.24
  6. Step 6: Final answer
    x = 27,580.74

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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.