Home / 21,981.85-32,982-9,495.44

Finding the Fourth Proportional to 21,981.85, 32,982 and 9,495.44

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Solution

The fourth proportional to 21,981.85, 32,982 and 9,495.44 is: 14,247.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,981.85 : 32,982 = 9,495.44 : x
  2. Step 2: Convert to fraction form
    21,981.85/32,982 = 9,495.44/x
  3. Step 3: Cross multiply
    21,981.85x = 32,982 × 9,495.44
  4. Step 4: Simplify right side
    21,981.85x = 313,178,684.54
  5. Step 5: Solve for x
    x = 313,178,684.54/21,981.85
  6. Step 6: Final answer
    x = 14,247.15

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1.5x scale

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.