Home / 45,479.60-68,217.87-13,888.39

Finding the Fourth Proportional to 45,479.60, 68,217.87 and 13,888.39

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Solution

The fourth proportional to 45,479.60, 68,217.87 and 13,888.39 is: 20,832.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,479.60 : 68,217.87 = 13,888.39 : x
  2. Step 2: Convert to fraction form
    45,479.60/68,217.87 = 13,888.39/x
  3. Step 3: Cross multiply
    45,479.60x = 68,217.87 × 13,888.39
  4. Step 4: Simplify right side
    45,479.60x = 947,436,143.54
  5. Step 5: Solve for x
    x = 947,436,143.54/45,479.60
  6. Step 6: Final answer
    x = 20,832.11

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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.