Home / 39,706.48-54,795.06-21,802.66

Finding the Fourth Proportional to 39,706.48, 54,795.06 and 21,802.66

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Solution

The fourth proportional to 39,706.48, 54,795.06 and 21,802.66 is: 30,087.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,706.48 : 54,795.06 = 21,802.66 : x
  2. Step 2: Convert to fraction form
    39,706.48/54,795.06 = 21,802.66/x
  3. Step 3: Cross multiply
    39,706.48x = 54,795.06 × 21,802.66
  4. Step 4: Simplify right side
    39,706.48x = 1,194,678,062.86
  5. Step 5: Solve for x
    x = 1,194,678,062.86/39,706.48
  6. Step 6: Final answer
    x = 30,087.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.