Home / 20,434.25-30,472.56-20,247.41

Finding the Fourth Proportional to 20,434.25, 30,472.56 and 20,247.41

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Solution

The fourth proportional to 20,434.25, 30,472.56 and 20,247.41 is: 30,193.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434.25 : 30,472.56 = 20,247.41 : x
  2. Step 2: Convert to fraction form
    20,434.25/30,472.56 = 20,247.41/x
  3. Step 3: Cross multiply
    20,434.25x = 30,472.56 × 20,247.41
  4. Step 4: Simplify right side
    20,434.25x = 616,990,162.47
  5. Step 5: Solve for x
    x = 616,990,162.47/20,434.25
  6. Step 6: Final answer
    x = 30,193.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.