Home / 21,470.91-32,191.28-9,457.36

Finding the Fourth Proportional to 21,470.91, 32,191.28 and 9,457.36

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Solution

The fourth proportional to 21,470.91, 32,191.28 and 9,457.36 is: 14,179.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,470.91 : 32,191.28 = 9,457.36 : x
  2. Step 2: Convert to fraction form
    21,470.91/32,191.28 = 9,457.36/x
  3. Step 3: Cross multiply
    21,470.91x = 32,191.28 × 9,457.36
  4. Step 4: Simplify right side
    21,470.91x = 304,444,525.64
  5. Step 5: Solve for x
    x = 304,444,525.64/21,470.91
  6. Step 6: Final answer
    x = 14,179.39

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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.