Home / 19,175.16-28,765.95-10,871.40

Finding the Fourth Proportional to 19,175.16, 28,765.95 and 10,871.40

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Solution

The fourth proportional to 19,175.16, 28,765.95 and 10,871.40 is: 16,308.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,175.16 : 28,765.95 = 10,871.40 : x
  2. Step 2: Convert to fraction form
    19,175.16/28,765.95 = 10,871.40/x
  3. Step 3: Cross multiply
    19,175.16x = 28,765.95 × 10,871.40
  4. Step 4: Simplify right side
    19,175.16x = 312,726,148.83
  5. Step 5: Solve for x
    x = 312,726,148.83/19,175.16
  6. Step 6: Final answer
    x = 16,308.92

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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.