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Finding the Fourth Proportional to 15,772.95, 23,659.43 and 13,828.95

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Solution

The fourth proportional to 15,772.95, 23,659.43 and 13,828.95 is: 20,743.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,772.95 : 23,659.43 = 13,828.95 : x
  2. Step 2: Convert to fraction form
    15,772.95/23,659.43 = 13,828.95/x
  3. Step 3: Cross multiply
    15,772.95x = 23,659.43 × 13,828.95
  4. Step 4: Simplify right side
    15,772.95x = 327,185,005.35
  5. Step 5: Solve for x
    x = 327,185,005.35/15,772.95
  6. Step 6: Final answer
    x = 20,743.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.