Home / 35,494.80-48,985.20-20,392.38

Finding the Fourth Proportional to 35,494.80, 48,985.20 and 20,392.38

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Solution

The fourth proportional to 35,494.80, 48,985.20 and 20,392.38 is: 28,142.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,494.80 : 48,985.20 = 20,392.38 : x
  2. Step 2: Convert to fraction form
    35,494.80/48,985.20 = 20,392.38/x
  3. Step 3: Cross multiply
    35,494.80x = 48,985.20 × 20,392.38
  4. Step 4: Simplify right side
    35,494.80x = 998,924,812.78
  5. Step 5: Solve for x
    x = 998,924,812.78/35,494.80
  6. Step 6: Final answer
    x = 28,142.85

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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.