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Finding the Fourth Proportional to 20,951.01, 28,903.50 and 17,750.70

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Solution

The fourth proportional to 20,951.01, 28,903.50 and 17,750.70 is: 24,488.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,951.01 : 28,903.50 = 17,750.70 : x
  2. Step 2: Convert to fraction form
    20,951.01/28,903.50 = 17,750.70/x
  3. Step 3: Cross multiply
    20,951.01x = 28,903.50 × 17,750.70
  4. Step 4: Simplify right side
    20,951.01x = 513,057,357.45
  5. Step 5: Solve for x
    x = 513,057,357.45/20,951.01
  6. Step 6: Final answer
    x = 24,488.43

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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.