Home / 31,519.50-47,279.25-13,051.50

Finding the Fourth Proportional to 31,519.50, 47,279.25 and 13,051.50

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Solution

The fourth proportional to 31,519.50, 47,279.25 and 13,051.50 is: 19,577.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,519.50 : 47,279.25 = 13,051.50 : x
  2. Step 2: Convert to fraction form
    31,519.50/47,279.25 = 13,051.50/x
  3. Step 3: Cross multiply
    31,519.50x = 47,279.25 × 13,051.50
  4. Step 4: Simplify right side
    31,519.50x = 617,065,131.38
  5. Step 5: Solve for x
    x = 617,065,131.38/31,519.50
  6. Step 6: Final answer
    x = 19,577.25

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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.