Home / 35,691.18-53,540.43-12,312.15

Finding the Fourth Proportional to 35,691.18, 53,540.43 and 12,312.15

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Solution

The fourth proportional to 35,691.18, 53,540.43 and 12,312.15 is: 18,469.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,691.18 : 53,540.43 = 12,312.15 : x
  2. Step 2: Convert to fraction form
    35,691.18/53,540.43 = 12,312.15/x
  3. Step 3: Cross multiply
    35,691.18x = 53,540.43 × 12,312.15
  4. Step 4: Simplify right side
    35,691.18x = 659,197,805.22
  5. Step 5: Solve for x
    x = 659,197,805.22/35,691.18
  6. Step 6: Final answer
    x = 18,469.49

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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.