Home / 31,781.02-47,677.06-13,071.36

Finding the Fourth Proportional to 31,781.02, 47,677.06 and 13,071.36

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Solution

The fourth proportional to 31,781.02, 47,677.06 and 13,071.36 is: 19,609.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,781.02 : 47,677.06 = 13,071.36 : x
  2. Step 2: Convert to fraction form
    31,781.02/47,677.06 = 13,071.36/x
  3. Step 3: Cross multiply
    31,781.02x = 47,677.06 × 13,071.36
  4. Step 4: Simplify right side
    31,781.02x = 623,204,015.00
  5. Step 5: Solve for x
    x = 623,204,015.00/31,781.02
  6. Step 6: Final answer
    x = 19,609.31

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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.