Home / 31,429.86-47,152.30-9,243.96

Finding the Fourth Proportional to 31,429.86, 47,152.30 and 9,243.96

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Solution

The fourth proportional to 31,429.86, 47,152.30 and 9,243.96 is: 13,868.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,429.86 : 47,152.30 = 9,243.96 : x
  2. Step 2: Convert to fraction form
    31,429.86/47,152.30 = 9,243.96/x
  3. Step 3: Cross multiply
    31,429.86x = 47,152.30 × 9,243.96
  4. Step 4: Simplify right side
    31,429.86x = 435,873,975.11
  5. Step 5: Solve for x
    x = 435,873,975.11/31,429.86
  6. Step 6: Final answer
    x = 13,868.15

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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.