Home / 27,983.08-38,617.14-15,407.56

Finding the Fourth Proportional to 27,983.08, 38,617.14 and 15,407.56

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Solution

The fourth proportional to 27,983.08, 38,617.14 and 15,407.56 is: 21,262.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,983.08 : 38,617.14 = 15,407.56 : x
  2. Step 2: Convert to fraction form
    27,983.08/38,617.14 = 15,407.56/x
  3. Step 3: Cross multiply
    27,983.08x = 38,617.14 × 15,407.56
  4. Step 4: Simplify right side
    27,983.08x = 594,995,901.58
  5. Step 5: Solve for x
    x = 594,995,901.58/27,983.08
  6. Step 6: Final answer
    x = 21,262.70

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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.