Home / 19,783.64-27,301.44-10,831.68

Finding the Fourth Proportional to 19,783.64, 27,301.44 and 10,831.68

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Solution

The fourth proportional to 19,783.64, 27,301.44 and 10,831.68 is: 14,947.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.64 : 27,301.44 = 10,831.68 : x
  2. Step 2: Convert to fraction form
    19,783.64/27,301.44 = 10,831.68/x
  3. Step 3: Cross multiply
    19,783.64x = 27,301.44 × 10,831.68
  4. Step 4: Simplify right side
    19,783.64x = 295,720,461.62
  5. Step 5: Solve for x
    x = 295,720,461.62/19,783.64
  6. Step 6: Final answer
    x = 14,947.73

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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.