Home / 35,423.20-48,885.52-20,320.12

Finding the Fourth Proportional to 35,423.20, 48,885.52 and 20,320.12

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Solution

The fourth proportional to 35,423.20, 48,885.52 and 20,320.12 is: 28,042.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,423.20 : 48,885.52 = 20,320.12 : x
  2. Step 2: Convert to fraction form
    35,423.20/48,885.52 = 20,320.12/x
  3. Step 3: Cross multiply
    35,423.20x = 48,885.52 × 20,320.12
  4. Step 4: Simplify right side
    35,423.20x = 993,359,388.23
  5. Step 5: Solve for x
    x = 993,359,388.23/35,423.20
  6. Step 6: Final answer
    x = 28,042.63

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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.