Home / 21,340.89-32,015.66-7,490.97

Finding the Fourth Proportional to 21,340.89, 32,015.66 and 7,490.97

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Solution

The fourth proportional to 21,340.89, 32,015.66 and 7,490.97 is: 11,237.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,340.89 : 32,015.66 = 7,490.97 : x
  2. Step 2: Convert to fraction form
    21,340.89/32,015.66 = 7,490.97/x
  3. Step 3: Cross multiply
    21,340.89x = 32,015.66 × 7,490.97
  4. Step 4: Simplify right side
    21,340.89x = 239,828,311.14
  5. Step 5: Solve for x
    x = 239,828,311.14/21,340.89
  6. Step 6: Final answer
    x = 11,237.97

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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.