Home / 21,257.51-31,889.75-6,462.99

Finding the Fourth Proportional to 21,257.51, 31,889.75 and 6,462.99

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Solution

The fourth proportional to 21,257.51, 31,889.75 and 6,462.99 is: 9,695.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257.51 : 31,889.75 = 6,462.99 : x
  2. Step 2: Convert to fraction form
    21,257.51/31,889.75 = 6,462.99/x
  3. Step 3: Cross multiply
    21,257.51x = 31,889.75 × 6,462.99
  4. Step 4: Simplify right side
    21,257.51x = 206,103,103.04
  5. Step 5: Solve for x
    x = 206,103,103.04/21,257.51
  6. Step 6: Final answer
    x = 9,695.55

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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.