Home / 19,722.72-27,217.40-10,770.40

Finding the Fourth Proportional to 19,722.72, 27,217.40 and 10,770.40

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Solution

The fourth proportional to 19,722.72, 27,217.40 and 10,770.40 is: 14,863.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,722.72 : 27,217.40 = 10,770.40 : x
  2. Step 2: Convert to fraction form
    19,722.72/27,217.40 = 10,770.40/x
  3. Step 3: Cross multiply
    19,722.72x = 27,217.40 × 10,770.40
  4. Step 4: Simplify right side
    19,722.72x = 293,142,284.96
  5. Step 5: Solve for x
    x = 293,142,284.96/19,722.72
  6. Step 6: Final answer
    x = 14,863.18

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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.