Home / 39,729.66-54,826.16-21,824.26

Finding the Fourth Proportional to 39,729.66, 54,826.16 and 21,824.26

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Solution

The fourth proportional to 39,729.66, 54,826.16 and 21,824.26 is: 30,117.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,729.66 : 54,826.16 = 21,824.26 : x
  2. Step 2: Convert to fraction form
    39,729.66/54,826.16 = 21,824.26/x
  3. Step 3: Cross multiply
    39,729.66x = 54,826.16 × 21,824.26
  4. Step 4: Simplify right side
    39,729.66x = 1,196,540,370.64
  5. Step 5: Solve for x
    x = 1,196,540,370.64/39,729.66
  6. Step 6: Final answer
    x = 30,117.06

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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.