Home / 20,284.76-30,411.08-13,308.24

Finding the Fourth Proportional to 20,284.76, 30,411.08 and 13,308.24

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Solution

The fourth proportional to 20,284.76, 30,411.08 and 13,308.24 is: 19,951.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.76 : 30,411.08 = 13,308.24 : x
  2. Step 2: Convert to fraction form
    20,284.76/30,411.08 = 13,308.24/x
  3. Step 3: Cross multiply
    20,284.76x = 30,411.08 × 13,308.24
  4. Step 4: Simplify right side
    20,284.76x = 404,717,951.30
  5. Step 5: Solve for x
    x = 404,717,951.30/20,284.76
  6. Step 6: Final answer
    x = 19,951.82

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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.