Home / 28,493.55-42,738.75-8,769.56

Finding the Fourth Proportional to 28,493.55, 42,738.75 and 8,769.56

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Solution

The fourth proportional to 28,493.55, 42,738.75 and 8,769.56 is: 13,153.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,493.55 : 42,738.75 = 8,769.56 : x
  2. Step 2: Convert to fraction form
    28,493.55/42,738.75 = 8,769.56/x
  3. Step 3: Cross multiply
    28,493.55x = 42,738.75 × 8,769.56
  4. Step 4: Simplify right side
    28,493.55x = 374,799,818.76
  5. Step 5: Solve for x
    x = 374,799,818.76/28,493.55
  6. Step 6: Final answer
    x = 13,153.85

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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.