Home / 21,981.67-32,981.73-9,495.28

Finding the Fourth Proportional to 21,981.67, 32,981.73 and 9,495.28

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Solution

The fourth proportional to 21,981.67, 32,981.73 and 9,495.28 is: 14,246.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,981.67 : 32,981.73 = 9,495.28 : x
  2. Step 2: Convert to fraction form
    21,981.67/32,981.73 = 9,495.28/x
  3. Step 3: Cross multiply
    21,981.67x = 32,981.73 × 9,495.28
  4. Step 4: Simplify right side
    21,981.67x = 313,170,761.23
  5. Step 5: Solve for x
    x = 313,170,761.23/21,981.67
  6. Step 6: Final answer
    x = 14,246.90

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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.