Home / 38,938.21-53,734.97-22,815.04

Finding the Fourth Proportional to 38,938.21, 53,734.97 and 22,815.04

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Solution

The fourth proportional to 38,938.21, 53,734.97 and 22,815.04 is: 31,484.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,938.21 : 53,734.97 = 22,815.04 : x
  2. Step 2: Convert to fraction form
    38,938.21/53,734.97 = 22,815.04/x
  3. Step 3: Cross multiply
    38,938.21x = 53,734.97 × 22,815.04
  4. Step 4: Simplify right side
    38,938.21x = 1,225,965,600.36
  5. Step 5: Solve for x
    x = 1,225,965,600.36/38,938.21
  6. Step 6: Final answer
    x = 31,484.90

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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.