Home / 27,643.18-38,147.68-15,710.48

Finding the Fourth Proportional to 27,643.18, 38,147.68 and 15,710.48

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Solution

The fourth proportional to 27,643.18, 38,147.68 and 15,710.48 is: 21,680.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,643.18 : 38,147.68 = 15,710.48 : x
  2. Step 2: Convert to fraction form
    27,643.18/38,147.68 = 15,710.48/x
  3. Step 3: Cross multiply
    27,643.18x = 38,147.68 × 15,710.48
  4. Step 4: Simplify right side
    27,643.18x = 599,318,363.69
  5. Step 5: Solve for x
    x = 599,318,363.69/27,643.18
  6. Step 6: Final answer
    x = 21,680.51

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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.