Home / 31,663.28-47,465.76-14,123.54

Finding the Fourth Proportional to 31,663.28, 47,465.76 and 14,123.54

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Solution

The fourth proportional to 31,663.28, 47,465.76 and 14,123.54 is: 21,172.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,663.28 : 47,465.76 = 14,123.54 : x
  2. Step 2: Convert to fraction form
    31,663.28/47,465.76 = 14,123.54/x
  3. Step 3: Cross multiply
    31,663.28x = 47,465.76 × 14,123.54
  4. Step 4: Simplify right side
    31,663.28x = 670,384,559.99
  5. Step 5: Solve for x
    x = 670,384,559.99/31,663.28
  6. Step 6: Final answer
    x = 21,172.30

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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.