Home / 19,783.68-27,301.50-10,831.56

Finding the Fourth Proportional to 19,783.68, 27,301.50 and 10,831.56

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Solution

The fourth proportional to 19,783.68, 27,301.50 and 10,831.56 is: 14,947.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.68 : 27,301.50 = 10,831.56 : x
  2. Step 2: Convert to fraction form
    19,783.68/27,301.50 = 10,831.56/x
  3. Step 3: Cross multiply
    19,783.68x = 27,301.50 × 10,831.56
  4. Step 4: Simplify right side
    19,783.68x = 295,717,835.34
  5. Step 5: Solve for x
    x = 295,717,835.34/19,783.68
  6. Step 6: Final answer
    x = 14,947.56

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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.