Home / 21,266.82-29,317.78-14,959.62

Finding the Fourth Proportional to 21,266.82, 29,317.78 and 14,959.62

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Solution

The fourth proportional to 21,266.82, 29,317.78 and 14,959.62 is: 20,622.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,266.82 : 29,317.78 = 14,959.62 : x
  2. Step 2: Convert to fraction form
    21,266.82/29,317.78 = 14,959.62/x
  3. Step 3: Cross multiply
    21,266.82x = 29,317.78 × 14,959.62
  4. Step 4: Simplify right side
    21,266.82x = 438,582,848.04
  5. Step 5: Solve for x
    x = 438,582,848.04/21,266.82
  6. Step 6: Final answer
    x = 20,622.87

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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.