Home / 28,143.29-42,214.93-13,344.13

Finding the Fourth Proportional to 28,143.29, 42,214.93 and 13,344.13

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Solution

The fourth proportional to 28,143.29, 42,214.93 and 13,344.13 is: 20,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,143.29 : 42,214.93 = 13,344.13 : x
  2. Step 2: Convert to fraction form
    28,143.29/42,214.93 = 13,344.13/x
  3. Step 3: Cross multiply
    28,143.29x = 42,214.93 × 13,344.13
  4. Step 4: Simplify right side
    28,143.29x = 563,321,567.73
  5. Step 5: Solve for x
    x = 563,321,567.73/28,143.29
  6. Step 6: Final answer
    x = 20,016.20

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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.