Home / 31,918.96-47,761.80-18,777.52

Finding the Fourth Proportional to 31,918.96, 47,761.80 and 18,777.52

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Solution

The fourth proportional to 31,918.96, 47,761.80 and 18,777.52 is: 28,097.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,918.96 : 47,761.80 = 18,777.52 : x
  2. Step 2: Convert to fraction form
    31,918.96/47,761.80 = 18,777.52/x
  3. Step 3: Cross multiply
    31,918.96x = 47,761.80 × 18,777.52
  4. Step 4: Simplify right side
    31,918.96x = 896,848,154.74
  5. Step 5: Solve for x
    x = 896,848,154.74/31,918.96
  6. Step 6: Final answer
    x = 28,097.66

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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.