Home / 20,729.52-31,089.69-5,935.14

Finding the Fourth Proportional to 20,729.52, 31,089.69 and 5,935.14

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Solution

The fourth proportional to 20,729.52, 31,089.69 and 5,935.14 is: 8,901.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,729.52 : 31,089.69 = 5,935.14 : x
  2. Step 2: Convert to fraction form
    20,729.52/31,089.69 = 5,935.14/x
  3. Step 3: Cross multiply
    20,729.52x = 31,089.69 × 5,935.14
  4. Step 4: Simplify right side
    20,729.52x = 184,521,662.71
  5. Step 5: Solve for x
    x = 184,521,662.71/20,729.52
  6. Step 6: Final answer
    x = 8,901.40

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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.