Home / 21,582.48-32,378.13-9,102.51

Finding the Fourth Proportional to 21,582.48, 32,378.13 and 9,102.51

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Solution

The fourth proportional to 21,582.48, 32,378.13 and 9,102.51 is: 13,655.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,582.48 : 32,378.13 = 9,102.51 : x
  2. Step 2: Convert to fraction form
    21,582.48/32,378.13 = 9,102.51/x
  3. Step 3: Cross multiply
    21,582.48x = 32,378.13 × 9,102.51
  4. Step 4: Simplify right side
    21,582.48x = 294,722,252.11
  5. Step 5: Solve for x
    x = 294,722,252.11/21,582.48
  6. Step 6: Final answer
    x = 13,655.62

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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.