Home / 30,132.15-45,204.53-9,073.72

Finding the Fourth Proportional to 30,132.15, 45,204.53 and 9,073.72

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Solution

The fourth proportional to 30,132.15, 45,204.53 and 9,073.72 is: 13,612.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,132.15 : 45,204.53 = 9,073.72 : x
  2. Step 2: Convert to fraction form
    30,132.15/45,204.53 = 9,073.72/x
  3. Step 3: Cross multiply
    30,132.15x = 45,204.53 × 9,073.72
  4. Step 4: Simplify right side
    30,132.15x = 410,173,310.13
  5. Step 5: Solve for x
    x = 410,173,310.13/30,132.15
  6. Step 6: Final answer
    x = 13,612.48

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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.