Home / 21,983.79-32,974.65-7,190.76

Finding the Fourth Proportional to 21,983.79, 32,974.65 and 7,190.76

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Solution

The fourth proportional to 21,983.79, 32,974.65 and 7,190.76 is: 10,785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,983.79 : 32,974.65 = 7,190.76 : x
  2. Step 2: Convert to fraction form
    21,983.79/32,974.65 = 7,190.76/x
  3. Step 3: Cross multiply
    21,983.79x = 32,974.65 × 7,190.76
  4. Step 4: Simplify right side
    21,983.79x = 237,112,794.23
  5. Step 5: Solve for x
    x = 237,112,794.23/21,983.79
  6. Step 6: Final answer
    x = 10,785.80

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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.