Home / 35,109.86-48,449.31-20,000.30

Finding the Fourth Proportional to 35,109.86, 48,449.31 and 20,000.30

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Solution

The fourth proportional to 35,109.86, 48,449.31 and 20,000.30 is: 27,599.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,109.86 : 48,449.31 = 20,000.30 : x
  2. Step 2: Convert to fraction form
    35,109.86/48,449.31 = 20,000.30/x
  3. Step 3: Cross multiply
    35,109.86x = 48,449.31 × 20,000.30
  4. Step 4: Simplify right side
    35,109.86x = 969,000,734.79
  5. Step 5: Solve for x
    x = 969,000,734.79/35,109.86
  6. Step 6: Final answer
    x = 27,599.11

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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.