Home / 19,070.06-28,607.76-7,220.57

Finding the Fourth Proportional to 19,070.06, 28,607.76 and 7,220.57

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Solution

The fourth proportional to 19,070.06, 28,607.76 and 7,220.57 is: 10,831.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,070.06 : 28,607.76 = 7,220.57 : x
  2. Step 2: Convert to fraction form
    19,070.06/28,607.76 = 7,220.57/x
  3. Step 3: Cross multiply
    19,070.06x = 28,607.76 × 7,220.57
  4. Step 4: Simplify right side
    19,070.06x = 206,564,190.58
  5. Step 5: Solve for x
    x = 206,564,190.58/19,070.06
  6. Step 6: Final answer
    x = 10,831.86

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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.