Home / 21,981.60-32,948.24-10,871.84

Finding the Fourth Proportional to 21,981.60, 32,948.24 and 10,871.84

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Solution

The fourth proportional to 21,981.60, 32,948.24 and 10,871.84 is: 16,295.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,981.60 : 32,948.24 = 10,871.84 : x
  2. Step 2: Convert to fraction form
    21,981.60/32,948.24 = 10,871.84/x
  3. Step 3: Cross multiply
    21,981.60x = 32,948.24 × 10,871.84
  4. Step 4: Simplify right side
    21,981.60x = 358,207,993.56
  5. Step 5: Solve for x
    x = 358,207,993.56/21,981.60
  6. Step 6: Final answer
    x = 16,295.81

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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.