Home / 28,355.20-42,474.44-16,640.17

Finding the Fourth Proportional to 28,355.20, 42,474.44 and 16,640.17

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Solution

The fourth proportional to 28,355.20, 42,474.44 and 16,640.17 is: 24,926.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,355.20 : 42,474.44 = 16,640.17 : x
  2. Step 2: Convert to fraction form
    28,355.20/42,474.44 = 16,640.17/x
  3. Step 3: Cross multiply
    28,355.20x = 42,474.44 × 16,640.17
  4. Step 4: Simplify right side
    28,355.20x = 706,781,837.67
  5. Step 5: Solve for x
    x = 706,781,837.67/28,355.20
  6. Step 6: Final answer
    x = 24,926.01

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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.