Home / 36,261.60-54,431.28-18,726.72

Finding the Fourth Proportional to 36,261.60, 54,431.28 and 18,726.72

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Solution

The fourth proportional to 36,261.60, 54,431.28 and 18,726.72 is: 28,110.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,261.60 : 54,431.28 = 18,726.72 : x
  2. Step 2: Convert to fraction form
    36,261.60/54,431.28 = 18,726.72/x
  3. Step 3: Cross multiply
    36,261.60x = 54,431.28 × 18,726.72
  4. Step 4: Simplify right side
    36,261.60x = 1,019,319,339.80
  5. Step 5: Solve for x
    x = 1,019,319,339.80/36,261.60
  6. Step 6: Final answer
    x = 28,110.16

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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.