Home / 27,776.14-38,331.16-15,200.90

Finding the Fourth Proportional to 27,776.14, 38,331.16 and 15,200.90

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Solution

The fourth proportional to 27,776.14, 38,331.16 and 15,200.90 is: 20,977.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,776.14 : 38,331.16 = 15,200.90 : x
  2. Step 2: Convert to fraction form
    27,776.14/38,331.16 = 15,200.90/x
  3. Step 3: Cross multiply
    27,776.14x = 38,331.16 × 15,200.90
  4. Step 4: Simplify right side
    27,776.14x = 582,668,130.04
  5. Step 5: Solve for x
    x = 582,668,130.04/27,776.14
  6. Step 6: Final answer
    x = 20,977.29

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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.