Home / 21,180.41-29,232.47-11,752.01

Finding the Fourth Proportional to 21,180.41, 29,232.47 and 11,752.01

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Solution

The fourth proportional to 21,180.41, 29,232.47 and 11,752.01 is: 16,219.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,180.41 : 29,232.47 = 11,752.01 : x
  2. Step 2: Convert to fraction form
    21,180.41/29,232.47 = 11,752.01/x
  3. Step 3: Cross multiply
    21,180.41x = 29,232.47 × 11,752.01
  4. Step 4: Simplify right side
    21,180.41x = 343,540,279.76
  5. Step 5: Solve for x
    x = 343,540,279.76/21,180.41
  6. Step 6: Final answer
    x = 16,219.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.