Home / 38,234.10-52,765.65-28,787.70

Finding the Fourth Proportional to 38,234.10, 52,765.65 and 28,787.70

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Solution

The fourth proportional to 38,234.10, 52,765.65 and 28,787.70 is: 39,728.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,234.10 : 52,765.65 = 28,787.70 : x
  2. Step 2: Convert to fraction form
    38,234.10/52,765.65 = 28,787.70/x
  3. Step 3: Cross multiply
    38,234.10x = 52,765.65 × 28,787.70
  4. Step 4: Simplify right side
    38,234.10x = 1,519,001,702.51
  5. Step 5: Solve for x
    x = 1,519,001,702.51/38,234.10
  6. Step 6: Final answer
    x = 39,728.98

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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.