Home / 21,250.67-31,879.65-6,461.08

Finding the Fourth Proportional to 21,250.67, 31,879.65 and 6,461.08

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Solution

The fourth proportional to 21,250.67, 31,879.65 and 6,461.08 is: 9,692.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250.67 : 31,879.65 = 6,461.08 : x
  2. Step 2: Convert to fraction form
    21,250.67/31,879.65 = 6,461.08/x
  3. Step 3: Cross multiply
    21,250.67x = 31,879.65 × 6,461.08
  4. Step 4: Simplify right side
    21,250.67x = 205,976,952.87
  5. Step 5: Solve for x
    x = 205,976,952.87/21,250.67
  6. Step 6: Final answer
    x = 9,692.73

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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.