Home / 21,929.25-32,890.23-7,886.44

Finding the Fourth Proportional to 21,929.25, 32,890.23 and 7,886.44

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Solution

The fourth proportional to 21,929.25, 32,890.23 and 7,886.44 is: 11,828.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,929.25 : 32,890.23 = 7,886.44 : x
  2. Step 2: Convert to fraction form
    21,929.25/32,890.23 = 7,886.44/x
  3. Step 3: Cross multiply
    21,929.25x = 32,890.23 × 7,886.44
  4. Step 4: Simplify right side
    21,929.25x = 259,386,866.59
  5. Step 5: Solve for x
    x = 259,386,866.59/21,929.25
  6. Step 6: Final answer
    x = 11,828.35

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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.