Home / 21,472.09-32,175.28-11,478.25

Finding the Fourth Proportional to 21,472.09, 32,175.28 and 11,478.25

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Solution

The fourth proportional to 21,472.09, 32,175.28 and 11,478.25 is: 17,199.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,472.09 : 32,175.28 = 11,478.25 : x
  2. Step 2: Convert to fraction form
    21,472.09/32,175.28 = 11,478.25/x
  3. Step 3: Cross multiply
    21,472.09x = 32,175.28 × 11,478.25
  4. Step 4: Simplify right side
    21,472.09x = 369,315,907.66
  5. Step 5: Solve for x
    x = 369,315,907.66/21,472.09
  6. Step 6: Final answer
    x = 17,199.81

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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.