Home / 27,057.60-37,343.16-15,121.80

Finding the Fourth Proportional to 27,057.60, 37,343.16 and 15,121.80

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Solution

The fourth proportional to 27,057.60, 37,343.16 and 15,121.80 is: 20,870.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,057.60 : 37,343.16 = 15,121.80 : x
  2. Step 2: Convert to fraction form
    27,057.60/37,343.16 = 15,121.80/x
  3. Step 3: Cross multiply
    27,057.60x = 37,343.16 × 15,121.80
  4. Step 4: Simplify right side
    27,057.60x = 564,695,796.89
  5. Step 5: Solve for x
    x = 564,695,796.89/27,057.60
  6. Step 6: Final answer
    x = 20,870.14

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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.