Home / 15,179.28-22,762.20-5,315.52

Finding the Fourth Proportional to 15,179.28, 22,762.20 and 5,315.52

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Solution

The fourth proportional to 15,179.28, 22,762.20 and 5,315.52 is: 7,970.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,179.28 : 22,762.20 = 5,315.52 : x
  2. Step 2: Convert to fraction form
    15,179.28/22,762.20 = 5,315.52/x
  3. Step 3: Cross multiply
    15,179.28x = 22,762.20 × 5,315.52
  4. Step 4: Simplify right side
    15,179.28x = 120,992,929.34
  5. Step 5: Solve for x
    x = 120,992,929.34/15,179.28
  6. Step 6: Final answer
    x = 7,970.93

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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.