Home / 28,225.38-38,933.18-18,136.48

Finding the Fourth Proportional to 28,225.38, 38,933.18 and 18,136.48

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Solution

The fourth proportional to 28,225.38, 38,933.18 and 18,136.48 is: 25,016.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225.38 : 38,933.18 = 18,136.48 : x
  2. Step 2: Convert to fraction form
    28,225.38/38,933.18 = 18,136.48/x
  3. Step 3: Cross multiply
    28,225.38x = 38,933.18 × 18,136.48
  4. Step 4: Simplify right side
    28,225.38x = 706,110,840.41
  5. Step 5: Solve for x
    x = 706,110,840.41/28,225.38
  6. Step 6: Final answer
    x = 25,016.88

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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.