Home / 27,015.18-37,280.88-15,078.39

Finding the Fourth Proportional to 27,015.18, 37,280.88 and 15,078.39

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Solution

The fourth proportional to 27,015.18, 37,280.88 and 15,078.39 is: 20,808.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,015.18 : 37,280.88 = 15,078.39 : x
  2. Step 2: Convert to fraction form
    27,015.18/37,280.88 = 15,078.39/x
  3. Step 3: Cross multiply
    27,015.18x = 37,280.88 × 15,078.39
  4. Step 4: Simplify right side
    27,015.18x = 562,135,648.18
  5. Step 5: Solve for x
    x = 562,135,648.18/27,015.18
  6. Step 6: Final answer
    x = 20,808.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.