Home / 20,950.08-31,418.40-9,263.04

Finding the Fourth Proportional to 20,950.08, 31,418.40 and 9,263.04

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Solution

The fourth proportional to 20,950.08, 31,418.40 and 9,263.04 is: 13,891.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,950.08 : 31,418.40 = 9,263.04 : x
  2. Step 2: Convert to fraction form
    20,950.08/31,418.40 = 9,263.04/x
  3. Step 3: Cross multiply
    20,950.08x = 31,418.40 × 9,263.04
  4. Step 4: Simplify right side
    20,950.08x = 291,029,895.94
  5. Step 5: Solve for x
    x = 291,029,895.94/20,950.08
  6. Step 6: Final answer
    x = 13,891.59

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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.