Home / 20,366.48-30,497.88-13,419.92

Finding the Fourth Proportional to 20,366.48, 30,497.88 and 13,419.92

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Solution

The fourth proportional to 20,366.48, 30,497.88 and 13,419.92 is: 20,095.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,366.48 : 30,497.88 = 13,419.92 : x
  2. Step 2: Convert to fraction form
    20,366.48/30,497.88 = 13,419.92/x
  3. Step 3: Cross multiply
    20,366.48x = 30,497.88 × 13,419.92
  4. Step 4: Simplify right side
    20,366.48x = 409,279,109.77
  5. Step 5: Solve for x
    x = 409,279,109.77/20,366.48
  6. Step 6: Final answer
    x = 20,095.72

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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.