Home / 21,969.53-32,976.17-12,113.45

Finding the Fourth Proportional to 21,969.53, 32,976.17 and 12,113.45

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Solution

The fourth proportional to 21,969.53, 32,976.17 and 12,113.45 is: 18,182.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,969.53 : 32,976.17 = 12,113.45 : x
  2. Step 2: Convert to fraction form
    21,969.53/32,976.17 = 12,113.45/x
  3. Step 3: Cross multiply
    21,969.53x = 32,976.17 × 12,113.45
  4. Step 4: Simplify right side
    21,969.53x = 399,454,961.04
  5. Step 5: Solve for x
    x = 399,454,961.04/21,969.53
  6. Step 6: Final answer
    x = 18,182.23

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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.