Home / 21,929.12-32,898-6,346.88

Finding the Fourth Proportional to 21,929.12, 32,898 and 6,346.88

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Solution

The fourth proportional to 21,929.12, 32,898 and 6,346.88 is: 9,521.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,929.12 : 32,898 = 6,346.88 : x
  2. Step 2: Convert to fraction form
    21,929.12/32,898 = 6,346.88/x
  3. Step 3: Cross multiply
    21,929.12x = 32,898 × 6,346.88
  4. Step 4: Simplify right side
    21,929.12x = 208,799,658.24
  5. Step 5: Solve for x
    x = 208,799,658.24/21,929.12
  6. Step 6: Final answer
    x = 9,521.57

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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.