Home / 21,192.19-31,788.83-6,401.59

Finding the Fourth Proportional to 21,192.19, 31,788.83 and 6,401.59

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Solution

The fourth proportional to 21,192.19, 31,788.83 and 6,401.59 is: 9,602.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192.19 : 31,788.83 = 6,401.59 : x
  2. Step 2: Convert to fraction form
    21,192.19/31,788.83 = 6,401.59/x
  3. Step 3: Cross multiply
    21,192.19x = 31,788.83 × 6,401.59
  4. Step 4: Simplify right side
    21,192.19x = 203,499,056.24
  5. Step 5: Solve for x
    x = 203,499,056.24/21,192.19
  6. Step 6: Final answer
    x = 9,602.55

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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.