Home / 25,870.79-35,702.96-15,797.61

Finding the Fourth Proportional to 25,870.79, 35,702.96 and 15,797.61

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Solution

The fourth proportional to 25,870.79, 35,702.96 and 15,797.61 is: 21,801.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,870.79 : 35,702.96 = 15,797.61 : x
  2. Step 2: Convert to fraction form
    25,870.79/35,702.96 = 15,797.61/x
  3. Step 3: Cross multiply
    25,870.79x = 35,702.96 × 15,797.61
  4. Step 4: Simplify right side
    25,870.79x = 564,021,414.03
  5. Step 5: Solve for x
    x = 564,021,414.03/25,870.79
  6. Step 6: Final answer
    x = 21,801.47

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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.