Home / 28,631.66-42,950.22-8,904.92

Finding the Fourth Proportional to 28,631.66, 42,950.22 and 8,904.92

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Solution

The fourth proportional to 28,631.66, 42,950.22 and 8,904.92 is: 13,358.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,631.66 : 42,950.22 = 8,904.92 : x
  2. Step 2: Convert to fraction form
    28,631.66/42,950.22 = 8,904.92/x
  3. Step 3: Cross multiply
    28,631.66x = 42,950.22 × 8,904.92
  4. Step 4: Simplify right side
    28,631.66x = 382,468,100.89
  5. Step 5: Solve for x
    x = 382,468,100.89/28,631.66
  6. Step 6: Final answer
    x = 13,358.22

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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.