Home / 19,783.68-27,302.13-10,831.16

Finding the Fourth Proportional to 19,783.68, 27,302.13 and 10,831.16

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Solution

The fourth proportional to 19,783.68, 27,302.13 and 10,831.16 is: 14,947.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.68 : 27,302.13 = 10,831.16 : x
  2. Step 2: Convert to fraction form
    19,783.68/27,302.13 = 10,831.16/x
  3. Step 3: Cross multiply
    19,783.68x = 27,302.13 × 10,831.16
  4. Step 4: Simplify right side
    19,783.68x = 295,713,738.37
  5. Step 5: Solve for x
    x = 295,713,738.37/19,783.68
  6. Step 6: Final answer
    x = 14,947.36

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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.