Home / 21,427.48-32,144.28-6,637.72

Finding the Fourth Proportional to 21,427.48, 32,144.28 and 6,637.72

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Solution

The fourth proportional to 21,427.48, 32,144.28 and 6,637.72 is: 9,957.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,427.48 : 32,144.28 = 6,637.72 : x
  2. Step 2: Convert to fraction form
    21,427.48/32,144.28 = 6,637.72/x
  3. Step 3: Cross multiply
    21,427.48x = 32,144.28 × 6,637.72
  4. Step 4: Simplify right side
    21,427.48x = 213,364,730.24
  5. Step 5: Solve for x
    x = 213,364,730.24/21,427.48
  6. Step 6: Final answer
    x = 9,957.53

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.