Home / 31,346.04-47,019.36-7,972.47

Finding the Fourth Proportional to 31,346.04, 47,019.36 and 7,972.47

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Solution

The fourth proportional to 31,346.04, 47,019.36 and 7,972.47 is: 11,958.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,346.04 : 47,019.36 = 7,972.47 : x
  2. Step 2: Convert to fraction form
    31,346.04/47,019.36 = 7,972.47/x
  3. Step 3: Cross multiply
    31,346.04x = 47,019.36 × 7,972.47
  4. Step 4: Simplify right side
    31,346.04x = 374,860,437.02
  5. Step 5: Solve for x
    x = 374,860,437.02/31,346.04
  6. Step 6: Final answer
    x = 11,958.78

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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.