Home / 21,974.02-32,965.28-7,178.96

Finding the Fourth Proportional to 21,974.02, 32,965.28 and 7,178.96

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Solution

The fourth proportional to 21,974.02, 32,965.28 and 7,178.96 is: 10,769.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,974.02 : 32,965.28 = 7,178.96 : x
  2. Step 2: Convert to fraction form
    21,974.02/32,965.28 = 7,178.96/x
  3. Step 3: Cross multiply
    21,974.02x = 32,965.28 × 7,178.96
  4. Step 4: Simplify right side
    21,974.02x = 236,656,426.51
  5. Step 5: Solve for x
    x = 236,656,426.51/21,974.02
  6. Step 6: Final answer
    x = 10,769.83

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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.