Home / 15,649.80-23,532.30-13,115.40

Finding the Fourth Proportional to 15,649.80, 23,532.30 and 13,115.40

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Solution

The fourth proportional to 15,649.80, 23,532.30 and 13,115.40 is: 19,721.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,649.80 : 23,532.30 = 13,115.40 : x
  2. Step 2: Convert to fraction form
    15,649.80/23,532.30 = 13,115.40/x
  3. Step 3: Cross multiply
    15,649.80x = 23,532.30 × 13,115.40
  4. Step 4: Simplify right side
    15,649.80x = 308,635,527.42
  5. Step 5: Solve for x
    x = 308,635,527.42/15,649.80
  6. Step 6: Final answer
    x = 19,721.37

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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.