Home / 21,030.71-31,546.17-6,239.77

Finding the Fourth Proportional to 21,030.71, 31,546.17 and 6,239.77

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Solution

The fourth proportional to 21,030.71, 31,546.17 and 6,239.77 is: 9,359.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030.71 : 31,546.17 = 6,239.77 : x
  2. Step 2: Convert to fraction form
    21,030.71/31,546.17 = 6,239.77/x
  3. Step 3: Cross multiply
    21,030.71x = 31,546.17 × 6,239.77
  4. Step 4: Simplify right side
    21,030.71x = 196,840,766.32
  5. Step 5: Solve for x
    x = 196,840,766.32/21,030.71
  6. Step 6: Final answer
    x = 9,359.68

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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.