Home / 26,643-39,975.84-10,000.61

Finding the Fourth Proportional to 26,643, 39,975.84 and 10,000.61

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Solution

The fourth proportional to 26,643, 39,975.84 and 10,000.61 is: 15,005.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,643 : 39,975.84 = 10,000.61 : x
  2. Step 2: Convert to fraction form
    26,643/39,975.84 = 10,000.61/x
  3. Step 3: Cross multiply
    26,643x = 39,975.84 × 10,000.61
  4. Step 4: Simplify right side
    26,643x = 399,782,585.38
  5. Step 5: Solve for x
    x = 399,782,585.38/26,643
  6. Step 6: Final answer
    x = 15,005.16

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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.