Home / 27,861.31-38,448.36-15,114.46

Finding the Fourth Proportional to 27,861.31, 38,448.36 and 15,114.46

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Solution

The fourth proportional to 27,861.31, 38,448.36 and 15,114.46 is: 20,857.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,861.31 : 38,448.36 = 15,114.46 : x
  2. Step 2: Convert to fraction form
    27,861.31/38,448.36 = 15,114.46/x
  3. Step 3: Cross multiply
    27,861.31x = 38,448.36 × 15,114.46
  4. Step 4: Simplify right side
    27,861.31x = 581,126,199.29
  5. Step 5: Solve for x
    x = 581,126,199.29/27,861.31
  6. Step 6: Final answer
    x = 20,857.82

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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.