Home / 19,016.40-28,488.27-10,671.12

Finding the Fourth Proportional to 19,016.40, 28,488.27 and 10,671.12

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Solution

The fourth proportional to 19,016.40, 28,488.27 and 10,671.12 is: 15,986.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,016.40 : 28,488.27 = 10,671.12 : x
  2. Step 2: Convert to fraction form
    19,016.40/28,488.27 = 10,671.12/x
  3. Step 3: Cross multiply
    19,016.40x = 28,488.27 × 10,671.12
  4. Step 4: Simplify right side
    19,016.40x = 304,001,747.76
  5. Step 5: Solve for x
    x = 304,001,747.76/19,016.40
  6. Step 6: Final answer
    x = 15,986.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.