Home / 28,312.25-42,474.92-8,322.04

Finding the Fourth Proportional to 28,312.25, 42,474.92 and 8,322.04

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Solution

The fourth proportional to 28,312.25, 42,474.92 and 8,322.04 is: 12,484.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312.25 : 42,474.92 = 8,322.04 : x
  2. Step 2: Convert to fraction form
    28,312.25/42,474.92 = 8,322.04/x
  3. Step 3: Cross multiply
    28,312.25x = 42,474.92 × 8,322.04
  4. Step 4: Simplify right side
    28,312.25x = 353,477,983.24
  5. Step 5: Solve for x
    x = 353,477,983.24/28,312.25
  6. Step 6: Final answer
    x = 12,484.98

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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.