Home / 21,232.08-31,848.84-5,649.72

Finding the Fourth Proportional to 21,232.08, 31,848.84 and 5,649.72

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Solution

The fourth proportional to 21,232.08, 31,848.84 and 5,649.72 is: 8,474.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.08 : 31,848.84 = 5,649.72 : x
  2. Step 2: Convert to fraction form
    21,232.08/31,848.84 = 5,649.72/x
  3. Step 3: Cross multiply
    21,232.08x = 31,848.84 × 5,649.72
  4. Step 4: Simplify right side
    21,232.08x = 179,937,028.32
  5. Step 5: Solve for x
    x = 179,937,028.32/21,232.08
  6. Step 6: Final answer
    x = 8,474.77

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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.