Home / 29,307.26-40,443.90-15,878.49

Finding the Fourth Proportional to 29,307.26, 40,443.90 and 15,878.49

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Solution

The fourth proportional to 29,307.26, 40,443.90 and 15,878.49 is: 21,912.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,307.26 : 40,443.90 = 15,878.49 : x
  2. Step 2: Convert to fraction form
    29,307.26/40,443.90 = 15,878.49/x
  3. Step 3: Cross multiply
    29,307.26x = 40,443.90 × 15,878.49
  4. Step 4: Simplify right side
    29,307.26x = 642,188,061.71
  5. Step 5: Solve for x
    x = 642,188,061.71/29,307.26
  6. Step 6: Final answer
    x = 21,912.25

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1.5x scale

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.