Home / 20,543.73-28,343.70-16,223.10

Finding the Fourth Proportional to 20,543.73, 28,343.70 and 16,223.10

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Solution

The fourth proportional to 20,543.73, 28,343.70 and 16,223.10 is: 22,382.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,543.73 : 28,343.70 = 16,223.10 : x
  2. Step 2: Convert to fraction form
    20,543.73/28,343.70 = 16,223.10/x
  3. Step 3: Cross multiply
    20,543.73x = 28,343.70 × 16,223.10
  4. Step 4: Simplify right side
    20,543.73x = 459,822,679.47
  5. Step 5: Solve for x
    x = 459,822,679.47/20,543.73
  6. Step 6: Final answer
    x = 22,382.63

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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.