Home / 32,778.80-45,234.32-18,630.71

Finding the Fourth Proportional to 32,778.80, 45,234.32 and 18,630.71

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Solution

The fourth proportional to 32,778.80, 45,234.32 and 18,630.71 is: 25,710.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,778.80 : 45,234.32 = 18,630.71 : x
  2. Step 2: Convert to fraction form
    32,778.80/45,234.32 = 18,630.71/x
  3. Step 3: Cross multiply
    32,778.80x = 45,234.32 × 18,630.71
  4. Step 4: Simplify right side
    32,778.80x = 842,747,178.64
  5. Step 5: Solve for x
    x = 842,747,178.64/32,778.80
  6. Step 6: Final answer
    x = 25,710.13

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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.