Home / 39,478.18-54,480.03-21,573.18

Finding the Fourth Proportional to 39,478.18, 54,480.03 and 21,573.18

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Solution

The fourth proportional to 39,478.18, 54,480.03 and 21,573.18 is: 29,771.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,478.18 : 54,480.03 = 21,573.18 : x
  2. Step 2: Convert to fraction form
    39,478.18/54,480.03 = 21,573.18/x
  3. Step 3: Cross multiply
    39,478.18x = 54,480.03 × 21,573.18
  4. Step 4: Simplify right side
    39,478.18x = 1,175,307,385.73
  5. Step 5: Solve for x
    x = 1,175,307,385.73/39,478.18
  6. Step 6: Final answer
    x = 29,771.07

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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.