Home / 20,723.52-31,068.36-9,637.14

Finding the Fourth Proportional to 20,723.52, 31,068.36 and 9,637.14

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Solution

The fourth proportional to 20,723.52, 31,068.36 and 9,637.14 is: 14,447.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.52 : 31,068.36 = 9,637.14 : x
  2. Step 2: Convert to fraction form
    20,723.52/31,068.36 = 9,637.14/x
  3. Step 3: Cross multiply
    20,723.52x = 31,068.36 × 9,637.14
  4. Step 4: Simplify right side
    20,723.52x = 299,410,134.89
  5. Step 5: Solve for x
    x = 299,410,134.89/20,723.52
  6. Step 6: Final answer
    x = 14,447.84

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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.