Home / 21,060.79-31,598.02-6,269.84

Finding the Fourth Proportional to 21,060.79, 31,598.02 and 6,269.84

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Solution

The fourth proportional to 21,060.79, 31,598.02 and 6,269.84 is: 9,406.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060.79 : 31,598.02 = 6,269.84 : x
  2. Step 2: Convert to fraction form
    21,060.79/31,598.02 = 6,269.84/x
  3. Step 3: Cross multiply
    21,060.79x = 31,598.02 × 6,269.84
  4. Step 4: Simplify right side
    21,060.79x = 198,114,371.73
  5. Step 5: Solve for x
    x = 198,114,371.73/21,060.79
  6. Step 6: Final answer
    x = 9,406.79

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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.