Home / 31,530.70-47,302.96-9,345.80

Finding the Fourth Proportional to 31,530.70, 47,302.96 and 9,345.80

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Solution

The fourth proportional to 31,530.70, 47,302.96 and 9,345.80 is: 14,020.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,530.70 : 47,302.96 = 9,345.80 : x
  2. Step 2: Convert to fraction form
    31,530.70/47,302.96 = 9,345.80/x
  3. Step 3: Cross multiply
    31,530.70x = 47,302.96 × 9,345.80
  4. Step 4: Simplify right side
    31,530.70x = 442,084,003.57
  5. Step 5: Solve for x
    x = 442,084,003.57/31,530.70
  6. Step 6: Final answer
    x = 14,020.75

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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.