Home / 21,639.96-32,450.76-6,645.24

Finding the Fourth Proportional to 21,639.96, 32,450.76 and 6,645.24

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Solution

The fourth proportional to 21,639.96, 32,450.76 and 6,645.24 is: 9,965.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,639.96 : 32,450.76 = 6,645.24 : x
  2. Step 2: Convert to fraction form
    21,639.96/32,450.76 = 6,645.24/x
  3. Step 3: Cross multiply
    21,639.96x = 32,450.76 × 6,645.24
  4. Step 4: Simplify right side
    21,639.96x = 215,643,088.38
  5. Step 5: Solve for x
    x = 215,643,088.38/21,639.96
  6. Step 6: Final answer
    x = 9,965.04

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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.