Home / 20,310.48-30,472.64-10,951.40

Finding the Fourth Proportional to 20,310.48, 30,472.64 and 10,951.40

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Solution

The fourth proportional to 20,310.48, 30,472.64 and 10,951.40 is: 16,430.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310.48 : 30,472.64 = 10,951.40 : x
  2. Step 2: Convert to fraction form
    20,310.48/30,472.64 = 10,951.40/x
  3. Step 3: Cross multiply
    20,310.48x = 30,472.64 × 10,951.40
  4. Step 4: Simplify right side
    20,310.48x = 333,717,862.58
  5. Step 5: Solve for x
    x = 333,717,862.58/20,310.48
  6. Step 6: Final answer
    x = 16,430.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.