Home / 27,057.18-37,338.80-15,120.51

Finding the Fourth Proportional to 27,057.18, 37,338.80 and 15,120.51

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Solution

The fourth proportional to 27,057.18, 37,338.80 and 15,120.51 is: 20,866.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,057.18 : 37,338.80 = 15,120.51 : x
  2. Step 2: Convert to fraction form
    27,057.18/37,338.80 = 15,120.51/x
  3. Step 3: Cross multiply
    27,057.18x = 37,338.80 × 15,120.51
  4. Step 4: Simplify right side
    27,057.18x = 564,581,693.20
  5. Step 5: Solve for x
    x = 564,581,693.20/27,057.18
  6. Step 6: Final answer
    x = 20,866.24

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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.