Home / 21,238.92-31,849.02-10,702.44

Finding the Fourth Proportional to 21,238.92, 31,849.02 and 10,702.44

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Solution

The fourth proportional to 21,238.92, 31,849.02 and 10,702.44 is: 16,048.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,238.92 : 31,849.02 = 10,702.44 : x
  2. Step 2: Convert to fraction form
    21,238.92/31,849.02 = 10,702.44/x
  3. Step 3: Cross multiply
    21,238.92x = 31,849.02 × 10,702.44
  4. Step 4: Simplify right side
    21,238.92x = 340,862,225.61
  5. Step 5: Solve for x
    x = 340,862,225.61/21,238.92
  6. Step 6: Final answer
    x = 16,048.94

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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.