Home / 28,489.05-42,738.21-8,767.62

Finding the Fourth Proportional to 28,489.05, 42,738.21 and 8,767.62

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Solution

The fourth proportional to 28,489.05, 42,738.21 and 8,767.62 is: 13,152.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,489.05 : 42,738.21 = 8,767.62 : x
  2. Step 2: Convert to fraction form
    28,489.05/42,738.21 = 8,767.62/x
  3. Step 3: Cross multiply
    28,489.05x = 42,738.21 × 8,767.62
  4. Step 4: Simplify right side
    28,489.05x = 374,712,384.76
  5. Step 5: Solve for x
    x = 374,712,384.76/28,489.05
  6. Step 6: Final answer
    x = 13,152.86

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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.