Home / 27,648.17-38,158.43-15,709.13

Finding the Fourth Proportional to 27,648.17, 38,158.43 and 15,709.13

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Solution

The fourth proportional to 27,648.17, 38,158.43 and 15,709.13 is: 21,680.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,648.17 : 38,158.43 = 15,709.13 : x
  2. Step 2: Convert to fraction form
    27,648.17/38,158.43 = 15,709.13/x
  3. Step 3: Cross multiply
    27,648.17x = 38,158.43 × 15,709.13
  4. Step 4: Simplify right side
    27,648.17x = 599,435,658.92
  5. Step 5: Solve for x
    x = 599,435,658.92/27,648.17
  6. Step 6: Final answer
    x = 21,680.84

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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.