Home / 31,801.68-47,719.80-13,346.64

Finding the Fourth Proportional to 31,801.68, 47,719.80 and 13,346.64

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Solution

The fourth proportional to 31,801.68, 47,719.80 and 13,346.64 is: 20,027.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,801.68 : 47,719.80 = 13,346.64 : x
  2. Step 2: Convert to fraction form
    31,801.68/47,719.80 = 13,346.64/x
  3. Step 3: Cross multiply
    31,801.68x = 47,719.80 × 13,346.64
  4. Step 4: Simplify right side
    31,801.68x = 636,898,991.47
  5. Step 5: Solve for x
    x = 636,898,991.47/31,801.68
  6. Step 6: Final answer
    x = 20,027.21

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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.