Home / 40,704.13-56,228.30-30,709.54

Finding the Fourth Proportional to 40,704.13, 56,228.30 and 30,709.54

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Solution

The fourth proportional to 40,704.13, 56,228.30 and 30,709.54 is: 42,421.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,704.13 : 56,228.30 = 30,709.54 : x
  2. Step 2: Convert to fraction form
    40,704.13/56,228.30 = 30,709.54/x
  3. Step 3: Cross multiply
    40,704.13x = 56,228.30 × 30,709.54
  4. Step 4: Simplify right side
    40,704.13x = 1,726,745,164.19
  5. Step 5: Solve for x
    x = 1,726,745,164.19/40,704.13
  6. Step 6: Final answer
    x = 42,421.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.