Home / 21,232.36-31,854.30-7,382.44

Finding the Fourth Proportional to 21,232.36, 31,854.30 and 7,382.44

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Solution

The fourth proportional to 21,232.36, 31,854.30 and 7,382.44 is: 11,075.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.36 : 31,854.30 = 7,382.44 : x
  2. Step 2: Convert to fraction form
    21,232.36/31,854.30 = 7,382.44/x
  3. Step 3: Cross multiply
    21,232.36x = 31,854.30 × 7,382.44
  4. Step 4: Simplify right side
    21,232.36x = 235,162,458.49
  5. Step 5: Solve for x
    x = 235,162,458.49/21,232.36
  6. Step 6: Final answer
    x = 11,075.66

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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.