Home / 19,853.12-27,397.35-10,901.20

Finding the Fourth Proportional to 19,853.12, 27,397.35 and 10,901.20

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Solution

The fourth proportional to 19,853.12, 27,397.35 and 10,901.20 is: 15,043.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,853.12 : 27,397.35 = 10,901.20 : x
  2. Step 2: Convert to fraction form
    19,853.12/27,397.35 = 10,901.20/x
  3. Step 3: Cross multiply
    19,853.12x = 27,397.35 × 10,901.20
  4. Step 4: Simplify right side
    19,853.12x = 298,663,991.82
  5. Step 5: Solve for x
    x = 298,663,991.82/19,853.12
  6. Step 6: Final answer
    x = 15,043.68

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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.