Home / 21,047.04-31,580.28-9,367.92

Finding the Fourth Proportional to 21,047.04, 31,580.28 and 9,367.92

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Solution

The fourth proportional to 21,047.04, 31,580.28 and 9,367.92 is: 14,056.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,047.04 : 31,580.28 = 9,367.92 : x
  2. Step 2: Convert to fraction form
    21,047.04/31,580.28 = 9,367.92/x
  3. Step 3: Cross multiply
    21,047.04x = 31,580.28 × 9,367.92
  4. Step 4: Simplify right side
    21,047.04x = 295,841,536.62
  5. Step 5: Solve for x
    x = 295,841,536.62/21,047.04
  6. Step 6: Final answer
    x = 14,056.21

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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.