Home / 28,041.32-42,046.21-9,311.33

Finding the Fourth Proportional to 28,041.32, 42,046.21 and 9,311.33

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Solution

The fourth proportional to 28,041.32, 42,046.21 and 9,311.33 is: 13,961.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,041.32 : 42,046.21 = 9,311.33 : x
  2. Step 2: Convert to fraction form
    28,041.32/42,046.21 = 9,311.33/x
  3. Step 3: Cross multiply
    28,041.32x = 42,046.21 × 9,311.33
  4. Step 4: Simplify right side
    28,041.32x = 391,506,136.56
  5. Step 5: Solve for x
    x = 391,506,136.56/28,041.32
  6. Step 6: Final answer
    x = 13,961.76

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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.