Home / 19,701.54-27,169.16-13,255.70

Finding the Fourth Proportional to 19,701.54, 27,169.16 and 13,255.70

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Solution

The fourth proportional to 19,701.54, 27,169.16 and 13,255.70 is: 18,280.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,701.54 : 27,169.16 = 13,255.70 : x
  2. Step 2: Convert to fraction form
    19,701.54/27,169.16 = 13,255.70/x
  3. Step 3: Cross multiply
    19,701.54x = 27,169.16 × 13,255.70
  4. Step 4: Simplify right side
    19,701.54x = 360,146,032.09
  5. Step 5: Solve for x
    x = 360,146,032.09/19,701.54
  6. Step 6: Final answer
    x = 18,280.10

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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.