Home / 21,252.40-31,886.48-8,773.52

Finding the Fourth Proportional to 21,252.40, 31,886.48 and 8,773.52

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Solution

The fourth proportional to 21,252.40, 31,886.48 and 8,773.52 is: 13,163.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,252.40 : 31,886.48 = 8,773.52 : x
  2. Step 2: Convert to fraction form
    21,252.40/31,886.48 = 8,773.52/x
  3. Step 3: Cross multiply
    21,252.40x = 31,886.48 × 8,773.52
  4. Step 4: Simplify right side
    21,252.40x = 279,756,670.01
  5. Step 5: Solve for x
    x = 279,756,670.01/21,252.40
  6. Step 6: Final answer
    x = 13,163.53

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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.