Home / 27,066.40-37,351.50-15,129.70

Finding the Fourth Proportional to 27,066.40, 37,351.50 and 15,129.70

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Solution

The fourth proportional to 27,066.40, 37,351.50 and 15,129.70 is: 20,878.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,066.40 : 37,351.50 = 15,129.70 : x
  2. Step 2: Convert to fraction form
    27,066.40/37,351.50 = 15,129.70/x
  3. Step 3: Cross multiply
    27,066.40x = 37,351.50 × 15,129.70
  4. Step 4: Simplify right side
    27,066.40x = 565,116,989.55
  5. Step 5: Solve for x
    x = 565,116,989.55/27,066.40
  6. Step 6: Final answer
    x = 20,878.91

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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.