Home / 27,456.10-37,890.08-15,519.48

Finding the Fourth Proportional to 27,456.10, 37,890.08 and 15,519.48

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Solution

The fourth proportional to 27,456.10, 37,890.08 and 15,519.48 is: 21,417.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,456.10 : 37,890.08 = 15,519.48 : x
  2. Step 2: Convert to fraction form
    27,456.10/37,890.08 = 15,519.48/x
  3. Step 3: Cross multiply
    27,456.10x = 37,890.08 × 15,519.48
  4. Step 4: Simplify right side
    27,456.10x = 588,034,338.76
  5. Step 5: Solve for x
    x = 588,034,338.76/27,456.10
  6. Step 6: Final answer
    x = 21,417.26

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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.