Home / 15,479.60-23,195.10-13,389.80

Finding the Fourth Proportional to 15,479.60, 23,195.10 and 13,389.80

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Solution

The fourth proportional to 15,479.60, 23,195.10 and 13,389.80 is: 20,063.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,479.60 : 23,195.10 = 13,389.80 : x
  2. Step 2: Convert to fraction form
    15,479.60/23,195.10 = 13,389.80/x
  3. Step 3: Cross multiply
    15,479.60x = 23,195.10 × 13,389.80
  4. Step 4: Simplify right side
    15,479.60x = 310,577,749.98
  5. Step 5: Solve for x
    x = 310,577,749.98/15,479.60
  6. Step 6: Final answer
    x = 20,063.68

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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.