Home / 36,403.53-54,607.78-12,378.05

Finding the Fourth Proportional to 36,403.53, 54,607.78 and 12,378.05

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Solution

The fourth proportional to 36,403.53, 54,607.78 and 12,378.05 is: 18,567.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,403.53 : 54,607.78 = 12,378.05 : x
  2. Step 2: Convert to fraction form
    36,403.53/54,607.78 = 12,378.05/x
  3. Step 3: Cross multiply
    36,403.53x = 54,607.78 × 12,378.05
  4. Step 4: Simplify right side
    36,403.53x = 675,937,831.23
  5. Step 5: Solve for x
    x = 675,937,831.23/36,403.53
  6. Step 6: Final answer
    x = 18,567.92

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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.