Home / 39,239.10-54,148.48-21,333.49

Finding the Fourth Proportional to 39,239.10, 54,148.48 and 21,333.49

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Solution

The fourth proportional to 39,239.10, 54,148.48 and 21,333.49 is: 29,439.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,239.10 : 54,148.48 = 21,333.49 : x
  2. Step 2: Convert to fraction form
    39,239.10/54,148.48 = 21,333.49/x
  3. Step 3: Cross multiply
    39,239.10x = 54,148.48 × 21,333.49
  4. Step 4: Simplify right side
    39,239.10x = 1,155,175,867.89
  5. Step 5: Solve for x
    x = 1,155,175,867.89/39,239.10
  6. Step 6: Final answer
    x = 29,439.41

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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.