Home / 38,386.89-52,973.37-21,391.85

Finding the Fourth Proportional to 38,386.89, 52,973.37 and 21,391.85

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Solution

The fourth proportional to 38,386.89, 52,973.37 and 21,391.85 is: 29,520.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,386.89 : 52,973.37 = 21,391.85 : x
  2. Step 2: Convert to fraction form
    38,386.89/52,973.37 = 21,391.85/x
  3. Step 3: Cross multiply
    38,386.89x = 52,973.37 × 21,391.85
  4. Step 4: Simplify right side
    38,386.89x = 1,133,198,517.47
  5. Step 5: Solve for x
    x = 1,133,198,517.47/38,386.89
  6. Step 6: Final answer
    x = 29,520.46

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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.