Home / 28,921.14-43,332.20-15,782.74

Finding the Fourth Proportional to 28,921.14, 43,332.20 and 15,782.74

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Solution

The fourth proportional to 28,921.14, 43,332.20 and 15,782.74 is: 23,647.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,921.14 : 43,332.20 = 15,782.74 : x
  2. Step 2: Convert to fraction form
    28,921.14/43,332.20 = 15,782.74/x
  3. Step 3: Cross multiply
    28,921.14x = 43,332.20 × 15,782.74
  4. Step 4: Simplify right side
    28,921.14x = 683,900,846.23
  5. Step 5: Solve for x
    x = 683,900,846.23/28,921.14
  6. Step 6: Final answer
    x = 23,647.09

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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.