Home / 31,426.98-47,128.14-11,694.74

Finding the Fourth Proportional to 31,426.98, 47,128.14 and 11,694.74

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Solution

The fourth proportional to 31,426.98, 47,128.14 and 11,694.74 is: 17,537.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,426.98 : 47,128.14 = 11,694.74 : x
  2. Step 2: Convert to fraction form
    31,426.98/47,128.14 = 11,694.74/x
  3. Step 3: Cross multiply
    31,426.98x = 47,128.14 × 11,694.74
  4. Step 4: Simplify right side
    31,426.98x = 551,151,343.98
  5. Step 5: Solve for x
    x = 551,151,343.98/31,426.98
  6. Step 6: Final answer
    x = 17,537.52

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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.