Home / 27,015.38-37,281.27-15,078.72

Finding the Fourth Proportional to 27,015.38, 37,281.27 and 15,078.72

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Solution

The fourth proportional to 27,015.38, 37,281.27 and 15,078.72 is: 20,808.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,015.38 : 37,281.27 = 15,078.72 : x
  2. Step 2: Convert to fraction form
    27,015.38/37,281.27 = 15,078.72/x
  3. Step 3: Cross multiply
    27,015.38x = 37,281.27 × 15,078.72
  4. Step 4: Simplify right side
    27,015.38x = 562,153,831.57
  5. Step 5: Solve for x
    x = 562,153,831.57/27,015.38
  6. Step 6: Final answer
    x = 20,808.66

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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.