Home / 21,680.70-32,505.33-14,643.12

Finding the Fourth Proportional to 21,680.70, 32,505.33 and 14,643.12

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Solution

The fourth proportional to 21,680.70, 32,505.33 and 14,643.12 is: 21,954.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,680.70 : 32,505.33 = 14,643.12 : x
  2. Step 2: Convert to fraction form
    21,680.70/32,505.33 = 14,643.12/x
  3. Step 3: Cross multiply
    21,680.70x = 32,505.33 × 14,643.12
  4. Step 4: Simplify right side
    21,680.70x = 475,979,447.83
  5. Step 5: Solve for x
    x = 475,979,447.83/21,680.70
  6. Step 6: Final answer
    x = 21,954.06

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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.