Home / 21,617.64-32,436.54-21,268.20

Finding the Fourth Proportional to 21,617.64, 32,436.54 and 21,268.20

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Solution

The fourth proportional to 21,617.64, 32,436.54 and 21,268.20 is: 31,912.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617.64 : 32,436.54 = 21,268.20 : x
  2. Step 2: Convert to fraction form
    21,617.64/32,436.54 = 21,268.20/x
  3. Step 3: Cross multiply
    21,617.64x = 32,436.54 × 21,268.20
  4. Step 4: Simplify right side
    21,617.64x = 689,866,820.03
  5. Step 5: Solve for x
    x = 689,866,820.03/21,617.64
  6. Step 6: Final answer
    x = 31,912.22

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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.