Home / 21,417.30-32,113.80-9,716.04

Finding the Fourth Proportional to 21,417.30, 32,113.80 and 9,716.04

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Solution

The fourth proportional to 21,417.30, 32,113.80 and 9,716.04 is: 14,568.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,417.30 : 32,113.80 = 9,716.04 : x
  2. Step 2: Convert to fraction form
    21,417.30/32,113.80 = 9,716.04/x
  3. Step 3: Cross multiply
    21,417.30x = 32,113.80 × 9,716.04
  4. Step 4: Simplify right side
    21,417.30x = 312,018,965.35
  5. Step 5: Solve for x
    x = 312,018,965.35/21,417.30
  6. Step 6: Final answer
    x = 14,568.55

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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.