Home / 27,966.18-38,586.96-20,416.62

Finding the Fourth Proportional to 27,966.18, 38,586.96 and 20,416.62

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Solution

The fourth proportional to 27,966.18, 38,586.96 and 20,416.62 is: 28,170.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,966.18 : 38,586.96 = 20,416.62 : x
  2. Step 2: Convert to fraction form
    27,966.18/38,586.96 = 20,416.62/x
  3. Step 3: Cross multiply
    27,966.18x = 38,586.96 × 20,416.62
  4. Step 4: Simplify right side
    27,966.18x = 787,815,299.28
  5. Step 5: Solve for x
    x = 787,815,299.28/27,966.18
  6. Step 6: Final answer
    x = 28,170.29

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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.