Home / 19,180.32-26,432.10-15,987.30

Finding the Fourth Proportional to 19,180.32, 26,432.10 and 15,987.30

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Solution

The fourth proportional to 19,180.32, 26,432.10 and 15,987.30 is: 22,031.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,180.32 : 26,432.10 = 15,987.30 : x
  2. Step 2: Convert to fraction form
    19,180.32/26,432.10 = 15,987.30/x
  3. Step 3: Cross multiply
    19,180.32x = 26,432.10 × 15,987.30
  4. Step 4: Simplify right side
    19,180.32x = 422,577,912.33
  5. Step 5: Solve for x
    x = 422,577,912.33/19,180.32
  6. Step 6: Final answer
    x = 22,031.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.