Home / 31,545-47,309.40-9,353.18

Finding the Fourth Proportional to 31,545, 47,309.40 and 9,353.18

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Solution

The fourth proportional to 31,545, 47,309.40 and 9,353.18 is: 14,027.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,545 : 47,309.40 = 9,353.18 : x
  2. Step 2: Convert to fraction form
    31,545/47,309.40 = 9,353.18/x
  3. Step 3: Cross multiply
    31,545x = 47,309.40 × 9,353.18
  4. Step 4: Simplify right side
    31,545x = 442,493,333.89
  5. Step 5: Solve for x
    x = 442,493,333.89/31,545
  6. Step 6: Final answer
    x = 14,027.37

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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.