Home / 27,015.20-37,281.68-15,078.48

Finding the Fourth Proportional to 27,015.20, 37,281.68 and 15,078.48

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Solution

The fourth proportional to 27,015.20, 37,281.68 and 15,078.48 is: 20,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,015.20 : 37,281.68 = 15,078.48 : x
  2. Step 2: Convert to fraction form
    27,015.20/37,281.68 = 15,078.48/x
  3. Step 3: Cross multiply
    27,015.20x = 37,281.68 × 15,078.48
  4. Step 4: Simplify right side
    27,015.20x = 562,151,066.25
  5. Step 5: Solve for x
    x = 562,151,066.25/27,015.20
  6. Step 6: Final answer
    x = 20,808.70

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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.