Home / 21,240.29-31,858.37-6,449.33

Finding the Fourth Proportional to 21,240.29, 31,858.37 and 6,449.33

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Solution

The fourth proportional to 21,240.29, 31,858.37 and 6,449.33 is: 9,673.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,240.29 : 31,858.37 = 6,449.33 : x
  2. Step 2: Convert to fraction form
    21,240.29/31,858.37 = 6,449.33/x
  3. Step 3: Cross multiply
    21,240.29x = 31,858.37 × 6,449.33
  4. Step 4: Simplify right side
    21,240.29x = 205,465,248.71
  5. Step 5: Solve for x
    x = 205,465,248.71/21,240.29
  6. Step 6: Final answer
    x = 9,673.37

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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.