Home / 28,156.85-42,236.67-8,433.52

Finding the Fourth Proportional to 28,156.85, 42,236.67 and 8,433.52

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Solution

The fourth proportional to 28,156.85, 42,236.67 and 8,433.52 is: 12,650.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156.85 : 42,236.67 = 8,433.52 : x
  2. Step 2: Convert to fraction form
    28,156.85/42,236.67 = 8,433.52/x
  3. Step 3: Cross multiply
    28,156.85x = 42,236.67 × 8,433.52
  4. Step 4: Simplify right side
    28,156.85x = 356,203,869.79
  5. Step 5: Solve for x
    x = 356,203,869.79/28,156.85
  6. Step 6: Final answer
    x = 12,650.70

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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.