Home / 20,645.04-30,967.56-8,958

Finding the Fourth Proportional to 20,645.04, 30,967.56 and 8,958

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Solution

The fourth proportional to 20,645.04, 30,967.56 and 8,958 is: 13,437

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645.04 : 30,967.56 = 8,958 : x
  2. Step 2: Convert to fraction form
    20,645.04/30,967.56 = 8,958/x
  3. Step 3: Cross multiply
    20,645.04x = 30,967.56 × 8,958
  4. Step 4: Simplify right side
    20,645.04x = 277,407,402.48
  5. Step 5: Solve for x
    x = 277,407,402.48/20,645.04
  6. Step 6: Final answer
    x = 13,437

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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.