Home / 21,900.38-32,873.95-9,426.58

Finding the Fourth Proportional to 21,900.38, 32,873.95 and 9,426.58

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Solution

The fourth proportional to 21,900.38, 32,873.95 and 9,426.58 is: 14,149.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,900.38 : 32,873.95 = 9,426.58 : x
  2. Step 2: Convert to fraction form
    21,900.38/32,873.95 = 9,426.58/x
  3. Step 3: Cross multiply
    21,900.38x = 32,873.95 × 9,426.58
  4. Step 4: Simplify right side
    21,900.38x = 309,888,849.19
  5. Step 5: Solve for x
    x = 309,888,849.19/21,900.38
  6. Step 6: Final answer
    x = 14,149.93

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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.