Home / 27,057.90-37,343.42-15,123.72

Finding the Fourth Proportional to 27,057.90, 37,343.42 and 15,123.72

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Solution

The fourth proportional to 27,057.90, 37,343.42 and 15,123.72 is: 20,872.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,057.90 : 37,343.42 = 15,123.72 : x
  2. Step 2: Convert to fraction form
    27,057.90/37,343.42 = 15,123.72/x
  3. Step 3: Cross multiply
    27,057.90x = 37,343.42 × 15,123.72
  4. Step 4: Simplify right side
    27,057.90x = 564,771,427.92
  5. Step 5: Solve for x
    x = 564,771,427.92/27,057.90
  6. Step 6: Final answer
    x = 20,872.70

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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.