Home / 29,307.29-40,444-15,878.91

Finding the Fourth Proportional to 29,307.29, 40,444 and 15,878.91

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Solution

The fourth proportional to 29,307.29, 40,444 and 15,878.91 is: 21,912.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,307.29 : 40,444 = 15,878.91 : x
  2. Step 2: Convert to fraction form
    29,307.29/40,444 = 15,878.91/x
  3. Step 3: Cross multiply
    29,307.29x = 40,444 × 15,878.91
  4. Step 4: Simplify right side
    29,307.29x = 642,206,636.04
  5. Step 5: Solve for x
    x = 642,206,636.04/29,307.29
  6. Step 6: Final answer
    x = 21,912.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.