Home / 15,686.20-23,529.30-13,547.80

Finding the Fourth Proportional to 15,686.20, 23,529.30 and 13,547.80

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Solution

The fourth proportional to 15,686.20, 23,529.30 and 13,547.80 is: 20,321.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,686.20 : 23,529.30 = 13,547.80 : x
  2. Step 2: Convert to fraction form
    15,686.20/23,529.30 = 13,547.80/x
  3. Step 3: Cross multiply
    15,686.20x = 23,529.30 × 13,547.80
  4. Step 4: Simplify right side
    15,686.20x = 318,770,250.54
  5. Step 5: Solve for x
    x = 318,770,250.54/15,686.20
  6. Step 6: Final answer
    x = 20,321.70

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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.