Home / 28,973.36-39,981.85-17,793.20

Finding the Fourth Proportional to 28,973.36, 39,981.85 and 17,793.20

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Solution

The fourth proportional to 28,973.36, 39,981.85 and 17,793.20 is: 24,553.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,973.36 : 39,981.85 = 17,793.20 : x
  2. Step 2: Convert to fraction form
    28,973.36/39,981.85 = 17,793.20/x
  3. Step 3: Cross multiply
    28,973.36x = 39,981.85 × 17,793.20
  4. Step 4: Simplify right side
    28,973.36x = 711,404,809.03
  5. Step 5: Solve for x
    x = 711,404,809.03/28,973.36
  6. Step 6: Final answer
    x = 24,553.76

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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.