Home / 21,225.78-29,290.29-11,794.02

Finding the Fourth Proportional to 21,225.78, 29,290.29 and 11,794.02

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Solution

The fourth proportional to 21,225.78, 29,290.29 and 11,794.02 is: 16,275.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225.78 : 29,290.29 = 11,794.02 : x
  2. Step 2: Convert to fraction form
    21,225.78/29,290.29 = 11,794.02/x
  3. Step 3: Cross multiply
    21,225.78x = 29,290.29 × 11,794.02
  4. Step 4: Simplify right side
    21,225.78x = 345,450,266.07
  5. Step 5: Solve for x
    x = 345,450,266.07/21,225.78
  6. Step 6: Final answer
    x = 16,275.03

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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.