Home / 38,905.44-53,673.61-28,720.85

Finding the Fourth Proportional to 38,905.44, 53,673.61 and 28,720.85

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Solution

The fourth proportional to 38,905.44, 53,673.61 and 28,720.85 is: 39,623.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,905.44 : 53,673.61 = 28,720.85 : x
  2. Step 2: Convert to fraction form
    38,905.44/53,673.61 = 28,720.85/x
  3. Step 3: Cross multiply
    38,905.44x = 53,673.61 × 28,720.85
  4. Step 4: Simplify right side
    38,905.44x = 1,541,551,701.77
  5. Step 5: Solve for x
    x = 1,541,551,701.77/38,905.44
  6. Step 6: Final answer
    x = 39,623.04

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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.