Home / 28,238.83-42,337.16-16,991.53

Finding the Fourth Proportional to 28,238.83, 42,337.16 and 16,991.53

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Solution

The fourth proportional to 28,238.83, 42,337.16 and 16,991.53 is: 25,474.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,238.83 : 42,337.16 = 16,991.53 : x
  2. Step 2: Convert to fraction form
    28,238.83/42,337.16 = 16,991.53/x
  3. Step 3: Cross multiply
    28,238.83x = 42,337.16 × 16,991.53
  4. Step 4: Simplify right side
    28,238.83x = 719,373,124.25
  5. Step 5: Solve for x
    x = 719,373,124.25/28,238.83
  6. Step 6: Final answer
    x = 25,474.61

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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.