Home / 19,853.20-27,397.81-10,900.63

Finding the Fourth Proportional to 19,853.20, 27,397.81 and 10,900.63

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Solution

The fourth proportional to 19,853.20, 27,397.81 and 10,900.63 is: 15,043.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,853.20 : 27,397.81 = 10,900.63 : x
  2. Step 2: Convert to fraction form
    19,853.20/27,397.81 = 10,900.63/x
  3. Step 3: Cross multiply
    19,853.20x = 27,397.81 × 10,900.63
  4. Step 4: Simplify right side
    19,853.20x = 298,653,414.19
  5. Step 5: Solve for x
    x = 298,653,414.19/19,853.20
  6. Step 6: Final answer
    x = 15,043.08

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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.