Home / 36,228.18-49,995.12-20,312.88

Finding the Fourth Proportional to 36,228.18, 49,995.12 and 20,312.88

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Solution

The fourth proportional to 36,228.18, 49,995.12 and 20,312.88 is: 28,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,228.18 : 49,995.12 = 20,312.88 : x
  2. Step 2: Convert to fraction form
    36,228.18/49,995.12 = 20,312.88/x
  3. Step 3: Cross multiply
    36,228.18x = 49,995.12 × 20,312.88
  4. Step 4: Simplify right side
    36,228.18x = 1,015,544,873.15
  5. Step 5: Solve for x
    x = 1,015,544,873.15/36,228.18
  6. Step 6: Final answer
    x = 28,031.90

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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.