Home / 19,725.76-27,220.54-10,771.55

Finding the Fourth Proportional to 19,725.76, 27,220.54 and 10,771.55

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Solution

The fourth proportional to 19,725.76, 27,220.54 and 10,771.55 is: 14,864.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,725.76 : 27,220.54 = 10,771.55 : x
  2. Step 2: Convert to fraction form
    19,725.76/27,220.54 = 10,771.55/x
  3. Step 3: Cross multiply
    19,725.76x = 27,220.54 × 10,771.55
  4. Step 4: Simplify right side
    19,725.76x = 293,207,407.64
  5. Step 5: Solve for x
    x = 293,207,407.64/19,725.76
  6. Step 6: Final answer
    x = 14,864.19

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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.