Home / 19,854.97-27,402.12-10,903.30

Finding the Fourth Proportional to 19,854.97, 27,402.12 and 10,903.30

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Solution

The fourth proportional to 19,854.97, 27,402.12 and 10,903.30 is: 15,047.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,854.97 : 27,402.12 = 10,903.30 : x
  2. Step 2: Convert to fraction form
    19,854.97/27,402.12 = 10,903.30/x
  3. Step 3: Cross multiply
    19,854.97x = 27,402.12 × 10,903.30
  4. Step 4: Simplify right side
    19,854.97x = 298,773,466.49
  5. Step 5: Solve for x
    x = 298,773,466.49/19,854.97
  6. Step 6: Final answer
    x = 15,047.79

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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.