Home / 19,831.12-27,366.47-10,878.54

Finding the Fourth Proportional to 19,831.12, 27,366.47 and 10,878.54

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Solution

The fourth proportional to 19,831.12, 27,366.47 and 10,878.54 is: 15,012.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.12 : 27,366.47 = 10,878.54 : x
  2. Step 2: Convert to fraction form
    19,831.12/27,366.47 = 10,878.54/x
  3. Step 3: Cross multiply
    19,831.12x = 27,366.47 × 10,878.54
  4. Step 4: Simplify right side
    19,831.12x = 297,707,238.55
  5. Step 5: Solve for x
    x = 297,707,238.55/19,831.12
  6. Step 6: Final answer
    x = 15,012.12

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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.