Home / 18,551.30-27,831.47-5,403.58

Finding the Fourth Proportional to 18,551.30, 27,831.47 and 5,403.58

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Solution

The fourth proportional to 18,551.30, 27,831.47 and 5,403.58 is: 8,106.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,551.30 : 27,831.47 = 5,403.58 : x
  2. Step 2: Convert to fraction form
    18,551.30/27,831.47 = 5,403.58/x
  3. Step 3: Cross multiply
    18,551.30x = 27,831.47 × 5,403.58
  4. Step 4: Simplify right side
    18,551.30x = 150,389,478.07
  5. Step 5: Solve for x
    x = 150,389,478.07/18,551.30
  6. Step 6: Final answer
    x = 8,106.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.