Home / 36,432.32-54,661.60-18,910.40

Finding the Fourth Proportional to 36,432.32, 54,661.60 and 18,910.40

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Solution

The fourth proportional to 36,432.32, 54,661.60 and 18,910.40 is: 28,372.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,432.32 : 54,661.60 = 18,910.40 : x
  2. Step 2: Convert to fraction form
    36,432.32/54,661.60 = 18,910.40/x
  3. Step 3: Cross multiply
    36,432.32x = 54,661.60 × 18,910.40
  4. Step 4: Simplify right side
    36,432.32x = 1,033,672,720.64
  5. Step 5: Solve for x
    x = 1,033,672,720.64/36,432.32
  6. Step 6: Final answer
    x = 28,372.41

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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.