Home / 27,631.32-38,130.03-15,694.62

Finding the Fourth Proportional to 27,631.32, 38,130.03 and 15,694.62

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Solution

The fourth proportional to 27,631.32, 38,130.03 and 15,694.62 is: 21,657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,631.32 : 38,130.03 = 15,694.62 : x
  2. Step 2: Convert to fraction form
    27,631.32/38,130.03 = 15,694.62/x
  3. Step 3: Cross multiply
    27,631.32x = 38,130.03 × 15,694.62
  4. Step 4: Simplify right side
    27,631.32x = 598,436,331.44
  5. Step 5: Solve for x
    x = 598,436,331.44/27,631.32
  6. Step 6: Final answer
    x = 21,657.90

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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.