Home / 28,304.14-42,419.42-11,645.22

Finding the Fourth Proportional to 28,304.14, 42,419.42 and 11,645.22

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Solution

The fourth proportional to 28,304.14, 42,419.42 and 11,645.22 is: 17,452.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,304.14 : 42,419.42 = 11,645.22 : x
  2. Step 2: Convert to fraction form
    28,304.14/42,419.42 = 11,645.22/x
  3. Step 3: Cross multiply
    28,304.14x = 42,419.42 × 11,645.22
  4. Step 4: Simplify right side
    28,304.14x = 493,983,478.17
  5. Step 5: Solve for x
    x = 493,983,478.17/28,304.14
  6. Step 6: Final answer
    x = 17,452.69

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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.