Home / 30,206.86-45,339.12-18,542.86

Finding the Fourth Proportional to 30,206.86, 45,339.12 and 18,542.86

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Solution

The fourth proportional to 30,206.86, 45,339.12 and 18,542.86 is: 27,831.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,206.86 : 45,339.12 = 18,542.86 : x
  2. Step 2: Convert to fraction form
    30,206.86/45,339.12 = 18,542.86/x
  3. Step 3: Cross multiply
    30,206.86x = 45,339.12 × 18,542.86
  4. Step 4: Simplify right side
    30,206.86x = 840,716,954.68
  5. Step 5: Solve for x
    x = 840,716,954.68/30,206.86
  6. Step 6: Final answer
    x = 27,831.99

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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.