Home / 21,418.48-32,127.96-7,557.76

Finding the Fourth Proportional to 21,418.48, 32,127.96 and 7,557.76

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Solution

The fourth proportional to 21,418.48, 32,127.96 and 7,557.76 is: 11,336.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,418.48 : 32,127.96 = 7,557.76 : x
  2. Step 2: Convert to fraction form
    21,418.48/32,127.96 = 7,557.76/x
  3. Step 3: Cross multiply
    21,418.48x = 32,127.96 × 7,557.76
  4. Step 4: Simplify right side
    21,418.48x = 242,815,410.97
  5. Step 5: Solve for x
    x = 242,815,410.97/21,418.48
  6. Step 6: Final answer
    x = 11,336.72

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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.