Home / 21,715.98-32,578.30-9,235.92

Finding the Fourth Proportional to 21,715.98, 32,578.30 and 9,235.92

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Solution

The fourth proportional to 21,715.98, 32,578.30 and 9,235.92 is: 13,855.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,715.98 : 32,578.30 = 9,235.92 : x
  2. Step 2: Convert to fraction form
    21,715.98/32,578.30 = 9,235.92/x
  3. Step 3: Cross multiply
    21,715.98x = 32,578.30 × 9,235.92
  4. Step 4: Simplify right side
    21,715.98x = 300,890,572.54
  5. Step 5: Solve for x
    x = 300,890,572.54/21,715.98
  6. Step 6: Final answer
    x = 13,855.72

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1.5x scale

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.