Home / 21,929.36-32,886.28-7,135.52

Finding the Fourth Proportional to 21,929.36, 32,886.28 and 7,135.52

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Solution

The fourth proportional to 21,929.36, 32,886.28 and 7,135.52 is: 10,700.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,929.36 : 32,886.28 = 7,135.52 : x
  2. Step 2: Convert to fraction form
    21,929.36/32,886.28 = 7,135.52/x
  3. Step 3: Cross multiply
    21,929.36x = 32,886.28 × 7,135.52
  4. Step 4: Simplify right side
    21,929.36x = 234,660,672.99
  5. Step 5: Solve for x
    x = 234,660,672.99/21,929.36
  6. Step 6: Final answer
    x = 10,700.75

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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.