Home / 21,417.92-32,122.56-11,555.36

Finding the Fourth Proportional to 21,417.92, 32,122.56 and 11,555.36

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Solution

The fourth proportional to 21,417.92, 32,122.56 and 11,555.36 is: 17,330.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,417.92 : 32,122.56 = 11,555.36 : x
  2. Step 2: Convert to fraction form
    21,417.92/32,122.56 = 11,555.36/x
  3. Step 3: Cross multiply
    21,417.92x = 32,122.56 × 11,555.36
  4. Step 4: Simplify right side
    21,417.92x = 371,187,744.92
  5. Step 5: Solve for x
    x = 371,187,744.92/21,417.92
  6. Step 6: Final answer
    x = 17,330.71

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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.