Home / 20,207.93-27,873.59-12,641.13

Finding the Fourth Proportional to 20,207.93, 27,873.59 and 12,641.13

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Solution

The fourth proportional to 20,207.93, 27,873.59 and 12,641.13 is: 17,436.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.93 : 27,873.59 = 12,641.13 : x
  2. Step 2: Convert to fraction form
    20,207.93/27,873.59 = 12,641.13/x
  3. Step 3: Cross multiply
    20,207.93x = 27,873.59 × 12,641.13
  4. Step 4: Simplify right side
    20,207.93x = 352,353,611.55
  5. Step 5: Solve for x
    x = 352,353,611.55/20,207.93
  6. Step 6: Final answer
    x = 17,436.40

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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.