Home / 28,272.28-38,990.28-17,662.96

Finding the Fourth Proportional to 28,272.28, 38,990.28 and 17,662.96

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Solution

The fourth proportional to 28,272.28, 38,990.28 and 17,662.96 is: 24,358.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,272.28 : 38,990.28 = 17,662.96 : x
  2. Step 2: Convert to fraction form
    28,272.28/38,990.28 = 17,662.96/x
  3. Step 3: Cross multiply
    28,272.28x = 38,990.28 × 17,662.96
  4. Step 4: Simplify right side
    28,272.28x = 688,683,756.03
  5. Step 5: Solve for x
    x = 688,683,756.03/28,272.28
  6. Step 6: Final answer
    x = 24,358.97

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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.