Home / 15,781.77-23,668.61-4,685.45

Finding the Fourth Proportional to 15,781.77, 23,668.61 and 4,685.45

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Solution

The fourth proportional to 15,781.77, 23,668.61 and 4,685.45 is: 7,026.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,781.77 : 23,668.61 = 4,685.45 : x
  2. Step 2: Convert to fraction form
    15,781.77/23,668.61 = 4,685.45/x
  3. Step 3: Cross multiply
    15,781.77x = 23,668.61 × 4,685.45
  4. Step 4: Simplify right side
    15,781.77x = 110,897,946.95
  5. Step 5: Solve for x
    x = 110,897,946.95/15,781.77
  6. Step 6: Final answer
    x = 7,026.97

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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.