Home / 19,783.47-27,301.21-10,831.52

Finding the Fourth Proportional to 19,783.47, 27,301.21 and 10,831.52

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Solution

The fourth proportional to 19,783.47, 27,301.21 and 10,831.52 is: 14,947.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.47 : 27,301.21 = 10,831.52 : x
  2. Step 2: Convert to fraction form
    19,783.47/27,301.21 = 10,831.52/x
  3. Step 3: Cross multiply
    19,783.47x = 27,301.21 × 10,831.52
  4. Step 4: Simplify right side
    19,783.47x = 295,713,602.14
  5. Step 5: Solve for x
    x = 295,713,602.14/19,783.47
  6. Step 6: Final answer
    x = 14,947.51

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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.