Home / 38,912.32-53,721.12-25,702.72

Finding the Fourth Proportional to 38,912.32, 53,721.12 and 25,702.72

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Solution

The fourth proportional to 38,912.32, 53,721.12 and 25,702.72 is: 35,484.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,912.32 : 53,721.12 = 25,702.72 : x
  2. Step 2: Convert to fraction form
    38,912.32/53,721.12 = 25,702.72/x
  3. Step 3: Cross multiply
    38,912.32x = 53,721.12 × 25,702.72
  4. Step 4: Simplify right side
    38,912.32x = 1,380,778,905.45
  5. Step 5: Solve for x
    x = 1,380,778,905.45/38,912.32
  6. Step 6: Final answer
    x = 35,484.36

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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.