Home / 19,785.06-27,301.96-10,831.12

Finding the Fourth Proportional to 19,785.06, 27,301.96 and 10,831.12

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Solution

The fourth proportional to 19,785.06, 27,301.96 and 10,831.12 is: 14,946.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.06 : 27,301.96 = 10,831.12 : x
  2. Step 2: Convert to fraction form
    19,785.06/27,301.96 = 10,831.12/x
  3. Step 3: Cross multiply
    19,785.06x = 27,301.96 × 10,831.12
  4. Step 4: Simplify right side
    19,785.06x = 295,710,750.28
  5. Step 5: Solve for x
    x = 295,710,750.28/19,785.06
  6. Step 6: Final answer
    x = 14,946.16

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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.