Home / 37,143.60-55,715.40-13,765.20

Finding the Fourth Proportional to 37,143.60, 55,715.40 and 13,765.20

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Solution

The fourth proportional to 37,143.60, 55,715.40 and 13,765.20 is: 20,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,143.60 : 55,715.40 = 13,765.20 : x
  2. Step 2: Convert to fraction form
    37,143.60/55,715.40 = 13,765.20/x
  3. Step 3: Cross multiply
    37,143.60x = 55,715.40 × 13,765.20
  4. Step 4: Simplify right side
    37,143.60x = 766,933,624.08
  5. Step 5: Solve for x
    x = 766,933,624.08/37,143.60
  6. Step 6: Final answer
    x = 20,647.80

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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.