Home / 21,311.19-31,944.49-7,266.29

Finding the Fourth Proportional to 21,311.19, 31,944.49 and 7,266.29

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Solution

The fourth proportional to 21,311.19, 31,944.49 and 7,266.29 is: 10,891.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,311.19 : 31,944.49 = 7,266.29 : x
  2. Step 2: Convert to fraction form
    21,311.19/31,944.49 = 7,266.29/x
  3. Step 3: Cross multiply
    21,311.19x = 31,944.49 × 7,266.29
  4. Step 4: Simplify right side
    21,311.19x = 232,118,075.03
  5. Step 5: Solve for x
    x = 232,118,075.03/21,311.19
  6. Step 6: Final answer
    x = 10,891.84

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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.