Home / 28,770.85-43,152.76-7,712.47

Finding the Fourth Proportional to 28,770.85, 43,152.76 and 7,712.47

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Solution

The fourth proportional to 28,770.85, 43,152.76 and 7,712.47 is: 11,567.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,770.85 : 43,152.76 = 7,712.47 : x
  2. Step 2: Convert to fraction form
    28,770.85/43,152.76 = 7,712.47/x
  3. Step 3: Cross multiply
    28,770.85x = 43,152.76 × 7,712.47
  4. Step 4: Simplify right side
    28,770.85x = 332,814,366.92
  5. Step 5: Solve for x
    x = 332,814,366.92/28,770.85
  6. Step 6: Final answer
    x = 11,567.76

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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.