Home / 31,609.08-47,420.40-9,424.20

Finding the Fourth Proportional to 31,609.08, 47,420.40 and 9,424.20

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Solution

The fourth proportional to 31,609.08, 47,420.40 and 9,424.20 is: 14,138.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,609.08 : 47,420.40 = 9,424.20 : x
  2. Step 2: Convert to fraction form
    31,609.08/47,420.40 = 9,424.20/x
  3. Step 3: Cross multiply
    31,609.08x = 47,420.40 × 9,424.20
  4. Step 4: Simplify right side
    31,609.08x = 446,899,333.68
  5. Step 5: Solve for x
    x = 446,899,333.68/31,609.08
  6. Step 6: Final answer
    x = 14,138.32

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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.