Home / 31,427.22-47,123.37-14,541.78

Finding the Fourth Proportional to 31,427.22, 47,123.37 and 14,541.78

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Solution

The fourth proportional to 31,427.22, 47,123.37 and 14,541.78 is: 21,804.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,427.22 : 47,123.37 = 14,541.78 : x
  2. Step 2: Convert to fraction form
    31,427.22/47,123.37 = 14,541.78/x
  3. Step 3: Cross multiply
    31,427.22x = 47,123.37 × 14,541.78
  4. Step 4: Simplify right side
    31,427.22x = 685,257,679.40
  5. Step 5: Solve for x
    x = 685,257,679.40/31,427.22
  6. Step 6: Final answer
    x = 21,804.59

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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.