Home / 21,307.01-31,960.49-9,606.56

Finding the Fourth Proportional to 21,307.01, 31,960.49 and 9,606.56

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Solution

The fourth proportional to 21,307.01, 31,960.49 and 9,606.56 is: 14,409.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,307.01 : 31,960.49 = 9,606.56 : x
  2. Step 2: Convert to fraction form
    21,307.01/31,960.49 = 9,606.56/x
  3. Step 3: Cross multiply
    21,307.01x = 31,960.49 × 9,606.56
  4. Step 4: Simplify right side
    21,307.01x = 307,030,156.98
  5. Step 5: Solve for x
    x = 307,030,156.98/21,307.01
  6. Step 6: Final answer
    x = 14,409.82

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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.