Home / 28,332.46-42,463.82-12,520.45

Finding the Fourth Proportional to 28,332.46, 42,463.82 and 12,520.45

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Solution

The fourth proportional to 28,332.46, 42,463.82 and 12,520.45 is: 18,765.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,332.46 : 42,463.82 = 12,520.45 : x
  2. Step 2: Convert to fraction form
    28,332.46/42,463.82 = 12,520.45/x
  3. Step 3: Cross multiply
    28,332.46x = 42,463.82 × 12,520.45
  4. Step 4: Simplify right side
    28,332.46x = 531,666,219.50
  5. Step 5: Solve for x
    x = 531,666,219.50/28,332.46
  6. Step 6: Final answer
    x = 18,765.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.