Home / 31,977.23-47,965.80-8,603.66

Finding the Fourth Proportional to 31,977.23, 47,965.80 and 8,603.66

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Solution

The fourth proportional to 31,977.23, 47,965.80 and 8,603.66 is: 12,905.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,977.23 : 47,965.80 = 8,603.66 : x
  2. Step 2: Convert to fraction form
    31,977.23/47,965.80 = 8,603.66/x
  3. Step 3: Cross multiply
    31,977.23x = 47,965.80 × 8,603.66
  4. Step 4: Simplify right side
    31,977.23x = 412,681,434.83
  5. Step 5: Solve for x
    x = 412,681,434.83/31,977.23
  6. Step 6: Final answer
    x = 12,905.48

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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.