Home / 19,742.76-27,243.14-10,789.70

Finding the Fourth Proportional to 19,742.76, 27,243.14 and 10,789.70

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Solution

The fourth proportional to 19,742.76, 27,243.14 and 10,789.70 is: 14,888.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,742.76 : 27,243.14 = 10,789.70 : x
  2. Step 2: Convert to fraction form
    19,742.76/27,243.14 = 10,789.70/x
  3. Step 3: Cross multiply
    19,742.76x = 27,243.14 × 10,789.70
  4. Step 4: Simplify right side
    19,742.76x = 293,945,117.49
  5. Step 5: Solve for x
    x = 293,945,117.49/19,742.76
  6. Step 6: Final answer
    x = 14,888.76

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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.