Home / 28,856.46-39,821.85-16,281.12

Finding the Fourth Proportional to 28,856.46, 39,821.85 and 16,281.12

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Solution

The fourth proportional to 28,856.46, 39,821.85 and 16,281.12 is: 22,467.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856.46 : 39,821.85 = 16,281.12 : x
  2. Step 2: Convert to fraction form
    28,856.46/39,821.85 = 16,281.12/x
  3. Step 3: Cross multiply
    28,856.46x = 39,821.85 × 16,281.12
  4. Step 4: Simplify right side
    28,856.46x = 648,344,318.47
  5. Step 5: Solve for x
    x = 648,344,318.47/28,856.46
  6. Step 6: Final answer
    x = 22,467.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.