Home / 28,015.14-42,019.38-10,480.26

Finding the Fourth Proportional to 28,015.14, 42,019.38 and 10,480.26

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Solution

The fourth proportional to 28,015.14, 42,019.38 and 10,480.26 is: 15,719.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,015.14 : 42,019.38 = 10,480.26 : x
  2. Step 2: Convert to fraction form
    28,015.14/42,019.38 = 10,480.26/x
  3. Step 3: Cross multiply
    28,015.14x = 42,019.38 × 10,480.26
  4. Step 4: Simplify right side
    28,015.14x = 440,374,027.44
  5. Step 5: Solve for x
    x = 440,374,027.44/28,015.14
  6. Step 6: Final answer
    x = 15,719.14

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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.