Home / 31,462.76-47,022.45-28,971.88

Finding the Fourth Proportional to 31,462.76, 47,022.45 and 28,971.88

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Solution

The fourth proportional to 31,462.76, 47,022.45 and 28,971.88 is: 43,299.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,462.76 : 47,022.45 = 28,971.88 : x
  2. Step 2: Convert to fraction form
    31,462.76/47,022.45 = 28,971.88/x
  3. Step 3: Cross multiply
    31,462.76x = 47,022.45 × 28,971.88
  4. Step 4: Simplify right side
    31,462.76x = 1,362,328,778.71
  5. Step 5: Solve for x
    x = 1,362,328,778.71/31,462.76
  6. Step 6: Final answer
    x = 43,299.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.