Home / 31,530.48-47,292.06-8,155.08

Finding the Fourth Proportional to 31,530.48, 47,292.06 and 8,155.08

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Solution

The fourth proportional to 31,530.48, 47,292.06 and 8,155.08 is: 12,231.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,530.48 : 47,292.06 = 8,155.08 : x
  2. Step 2: Convert to fraction form
    31,530.48/47,292.06 = 8,155.08/x
  3. Step 3: Cross multiply
    31,530.48x = 47,292.06 × 8,155.08
  4. Step 4: Simplify right side
    31,530.48x = 385,670,532.66
  5. Step 5: Solve for x
    x = 385,670,532.66/31,530.48
  6. Step 6: Final answer
    x = 12,231.67

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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.