Home / 21,427.17-29,566.69-11,995.75

Finding the Fourth Proportional to 21,427.17, 29,566.69 and 11,995.75

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Solution

The fourth proportional to 21,427.17, 29,566.69 and 11,995.75 is: 16,552.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,427.17 : 29,566.69 = 11,995.75 : x
  2. Step 2: Convert to fraction form
    21,427.17/29,566.69 = 11,995.75/x
  3. Step 3: Cross multiply
    21,427.17x = 29,566.69 × 11,995.75
  4. Step 4: Simplify right side
    21,427.17x = 354,674,621.57
  5. Step 5: Solve for x
    x = 354,674,621.57/21,427.17
  6. Step 6: Final answer
    x = 16,552.56

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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.