Home / 37,811.60-56,716.08-20,315.60

Finding the Fourth Proportional to 37,811.60, 56,716.08 and 20,315.60

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Solution

The fourth proportional to 37,811.60, 56,716.08 and 20,315.60 is: 30,472.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,811.60 : 56,716.08 = 20,315.60 : x
  2. Step 2: Convert to fraction form
    37,811.60/56,716.08 = 20,315.60/x
  3. Step 3: Cross multiply
    37,811.60x = 56,716.08 × 20,315.60
  4. Step 4: Simplify right side
    37,811.60x = 1,152,221,194.85
  5. Step 5: Solve for x
    x = 1,152,221,194.85/37,811.60
  6. Step 6: Final answer
    x = 30,472.69

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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.