Home / 19,895.76-27,453.06-12,831.75

Finding the Fourth Proportional to 19,895.76, 27,453.06 and 12,831.75

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Solution

The fourth proportional to 19,895.76, 27,453.06 and 12,831.75 is: 17,705.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,895.76 : 27,453.06 = 12,831.75 : x
  2. Step 2: Convert to fraction form
    19,895.76/27,453.06 = 12,831.75/x
  3. Step 3: Cross multiply
    19,895.76x = 27,453.06 × 12,831.75
  4. Step 4: Simplify right side
    19,895.76x = 352,270,802.66
  5. Step 5: Solve for x
    x = 352,270,802.66/19,895.76
  6. Step 6: Final answer
    x = 17,705.82

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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.