Home / 29,571.16-40,819.28-18,391

Finding the Fourth Proportional to 29,571.16, 40,819.28 and 18,391

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Solution

The fourth proportional to 29,571.16, 40,819.28 and 18,391 is: 25,386.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,571.16 : 40,819.28 = 18,391 : x
  2. Step 2: Convert to fraction form
    29,571.16/40,819.28 = 18,391/x
  3. Step 3: Cross multiply
    29,571.16x = 40,819.28 × 18,391
  4. Step 4: Simplify right side
    29,571.16x = 750,707,378.48
  5. Step 5: Solve for x
    x = 750,707,378.48/29,571.16
  6. Step 6: Final answer
    x = 25,386.47

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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.