Home / 31,427.66-47,162.00-11,721.98

Finding the Fourth Proportional to 31,427.66, 47,162.00 and 11,721.98

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Solution

The fourth proportional to 31,427.66, 47,162.00 and 11,721.98 is: 17,590.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,427.66 : 47,162.00 = 11,721.98 : x
  2. Step 2: Convert to fraction form
    31,427.66/47,162.00 = 11,721.98/x
  3. Step 3: Cross multiply
    31,427.66x = 47,162.00 × 11,721.98
  4. Step 4: Simplify right side
    31,427.66x = 552,831,814.25
  5. Step 5: Solve for x
    x = 552,831,814.25/31,427.66
  6. Step 6: Final answer
    x = 17,590.62

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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.