Home / 21,788.40-32,669.64-9,302.04

Finding the Fourth Proportional to 21,788.40, 32,669.64 and 9,302.04

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Solution

The fourth proportional to 21,788.40, 32,669.64 and 9,302.04 is: 13,947.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,788.40 : 32,669.64 = 9,302.04 : x
  2. Step 2: Convert to fraction form
    21,788.40/32,669.64 = 9,302.04/x
  3. Step 3: Cross multiply
    21,788.40x = 32,669.64 × 9,302.04
  4. Step 4: Simplify right side
    21,788.40x = 303,894,298.07
  5. Step 5: Solve for x
    x = 303,894,298.07/21,788.40
  6. Step 6: Final answer
    x = 13,947.53

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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.