Home / 30,520.14-45,767.25-13,875.18

Finding the Fourth Proportional to 30,520.14, 45,767.25 and 13,875.18

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Solution

The fourth proportional to 30,520.14, 45,767.25 and 13,875.18 is: 20,806.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,520.14 : 45,767.25 = 13,875.18 : x
  2. Step 2: Convert to fraction form
    30,520.14/45,767.25 = 13,875.18/x
  3. Step 3: Cross multiply
    30,520.14x = 45,767.25 × 13,875.18
  4. Step 4: Simplify right side
    30,520.14x = 635,028,831.86
  5. Step 5: Solve for x
    x = 635,028,831.86/30,520.14
  6. Step 6: Final answer
    x = 20,806.88

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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.