Home / 21,079.27-31,615.26-7,228.27

Finding the Fourth Proportional to 21,079.27, 31,615.26 and 7,228.27

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Solution

The fourth proportional to 21,079.27, 31,615.26 and 7,228.27 is: 10,841.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,079.27 : 31,615.26 = 7,228.27 : x
  2. Step 2: Convert to fraction form
    21,079.27/31,615.26 = 7,228.27/x
  3. Step 3: Cross multiply
    21,079.27x = 31,615.26 × 7,228.27
  4. Step 4: Simplify right side
    21,079.27x = 228,523,635.40
  5. Step 5: Solve for x
    x = 228,523,635.40/21,079.27
  6. Step 6: Final answer
    x = 10,841.16

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1.5x scale

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.