Home / 31,580.83-47,364.72-11,858.95

Finding the Fourth Proportional to 31,580.83, 47,364.72 and 11,858.95

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Solution

The fourth proportional to 31,580.83, 47,364.72 and 11,858.95 is: 17,785.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,580.83 : 47,364.72 = 11,858.95 : x
  2. Step 2: Convert to fraction form
    31,580.83/47,364.72 = 11,858.95/x
  3. Step 3: Cross multiply
    31,580.83x = 47,364.72 × 11,858.95
  4. Step 4: Simplify right side
    31,580.83x = 561,695,846.24
  5. Step 5: Solve for x
    x = 561,695,846.24/31,580.83
  6. Step 6: Final answer
    x = 17,785.97

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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.