Home / 28,342.24-42,454.80-16,620.16

Finding the Fourth Proportional to 28,342.24, 42,454.80 and 16,620.16

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Solution

The fourth proportional to 28,342.24, 42,454.80 and 16,620.16 is: 24,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342.24 : 42,454.80 = 16,620.16 : x
  2. Step 2: Convert to fraction form
    28,342.24/42,454.80 = 16,620.16/x
  3. Step 3: Cross multiply
    28,342.24x = 42,454.80 × 16,620.16
  4. Step 4: Simplify right side
    28,342.24x = 705,605,568.77
  5. Step 5: Solve for x
    x = 705,605,568.77/28,342.24
  6. Step 6: Final answer
    x = 24,895.90

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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.