Home / 28,061.76-38,722.56-16,122.24

Finding the Fourth Proportional to 28,061.76, 38,722.56 and 16,122.24

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Solution

The fourth proportional to 28,061.76, 38,722.56 and 16,122.24 is: 22,247.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,061.76 : 38,722.56 = 16,122.24 : x
  2. Step 2: Convert to fraction form
    28,061.76/38,722.56 = 16,122.24/x
  3. Step 3: Cross multiply
    28,061.76x = 38,722.56 × 16,122.24
  4. Step 4: Simplify right side
    28,061.76x = 624,294,405.73
  5. Step 5: Solve for x
    x = 624,294,405.73/28,061.76
  6. Step 6: Final answer
    x = 22,247.16

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Double scale
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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.