Home / 31,583.36-47,359.19-10,515.98

Finding the Fourth Proportional to 31,583.36, 47,359.19 and 10,515.98

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Solution

The fourth proportional to 31,583.36, 47,359.19 and 10,515.98 is: 15,768.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,583.36 : 47,359.19 = 10,515.98 : x
  2. Step 2: Convert to fraction form
    31,583.36/47,359.19 = 10,515.98/x
  3. Step 3: Cross multiply
    31,583.36x = 47,359.19 × 10,515.98
  4. Step 4: Simplify right side
    31,583.36x = 498,028,294.86
  5. Step 5: Solve for x
    x = 498,028,294.86/31,583.36
  6. Step 6: Final answer
    x = 15,768.69

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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.