Home / 39,205.57-54,103.38-21,300.52

Finding the Fourth Proportional to 39,205.57, 54,103.38 and 21,300.52

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Solution

The fourth proportional to 39,205.57, 54,103.38 and 21,300.52 is: 29,394.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,205.57 : 54,103.38 = 21,300.52 : x
  2. Step 2: Convert to fraction form
    39,205.57/54,103.38 = 21,300.52/x
  3. Step 3: Cross multiply
    39,205.57x = 54,103.38 × 21,300.52
  4. Step 4: Simplify right side
    39,205.57x = 1,152,430,127.76
  5. Step 5: Solve for x
    x = 1,152,430,127.76/39,205.57
  6. Step 6: Final answer
    x = 29,394.55

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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.