Home / 13,750.32-20,625.54-4,981.80

Finding the Fourth Proportional to 13,750.32, 20,625.54 and 4,981.80

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Solution

The fourth proportional to 13,750.32, 20,625.54 and 4,981.80 is: 7,472.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.32 : 20,625.54 = 4,981.80 : x
  2. Step 2: Convert to fraction form
    13,750.32/20,625.54 = 4,981.80/x
  3. Step 3: Cross multiply
    13,750.32x = 20,625.54 × 4,981.80
  4. Step 4: Simplify right side
    13,750.32x = 102,752,315.17
  5. Step 5: Solve for x
    x = 102,752,315.17/13,750.32
  6. Step 6: Final answer
    x = 7,472.72

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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.