Home / 39,324.64-54,266.80-21,419.36

Finding the Fourth Proportional to 39,324.64, 54,266.80 and 21,419.36

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Solution

The fourth proportional to 39,324.64, 54,266.80 and 21,419.36 is: 29,558.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,324.64 : 54,266.80 = 21,419.36 : x
  2. Step 2: Convert to fraction form
    39,324.64/54,266.80 = 21,419.36/x
  3. Step 3: Cross multiply
    39,324.64x = 54,266.80 × 21,419.36
  4. Step 4: Simplify right side
    39,324.64x = 1,162,360,125.25
  5. Step 5: Solve for x
    x = 1,162,360,125.25/39,324.64
  6. Step 6: Final answer
    x = 29,558.06

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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.