Home / 21,072.24-31,603.50-7,925.94

Finding the Fourth Proportional to 21,072.24, 31,603.50 and 7,925.94

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Solution

The fourth proportional to 21,072.24, 31,603.50 and 7,925.94 is: 11,887.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,072.24 : 31,603.50 = 7,925.94 : x
  2. Step 2: Convert to fraction form
    21,072.24/31,603.50 = 7,925.94/x
  3. Step 3: Cross multiply
    21,072.24x = 31,603.50 × 7,925.94
  4. Step 4: Simplify right side
    21,072.24x = 250,487,444.79
  5. Step 5: Solve for x
    x = 250,487,444.79/21,072.24
  6. Step 6: Final answer
    x = 11,887.08

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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.