Home / 28,758.21-43,127.67-13,957.68

Finding the Fourth Proportional to 28,758.21, 43,127.67 and 13,957.68

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Solution

The fourth proportional to 28,758.21, 43,127.67 and 13,957.68 is: 20,931.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758.21 : 43,127.67 = 13,957.68 : x
  2. Step 2: Convert to fraction form
    28,758.21/43,127.67 = 13,957.68/x
  3. Step 3: Cross multiply
    28,758.21x = 43,127.67 × 13,957.68
  4. Step 4: Simplify right side
    28,758.21x = 601,962,217.01
  5. Step 5: Solve for x
    x = 601,962,217.01/28,758.21
  6. Step 6: Final answer
    x = 20,931.84

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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.