Home / 40,928.24-61,424.18-18,742.87

Finding the Fourth Proportional to 40,928.24, 61,424.18 and 18,742.87

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Solution

The fourth proportional to 40,928.24, 61,424.18 and 18,742.87 is: 28,128.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,928.24 : 61,424.18 = 18,742.87 : x
  2. Step 2: Convert to fraction form
    40,928.24/61,424.18 = 18,742.87/x
  3. Step 3: Cross multiply
    40,928.24x = 61,424.18 × 18,742.87
  4. Step 4: Simplify right side
    40,928.24x = 1,151,265,762.37
  5. Step 5: Solve for x
    x = 1,151,265,762.37/40,928.24
  6. Step 6: Final answer
    x = 28,128.88

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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.