Home / 20,625.04-30,937.56-8,938

Finding the Fourth Proportional to 20,625.04, 30,937.56 and 8,938

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Solution

The fourth proportional to 20,625.04, 30,937.56 and 8,938 is: 13,407.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,625.04 : 30,937.56 = 8,938 : x
  2. Step 2: Convert to fraction form
    20,625.04/30,937.56 = 8,938/x
  3. Step 3: Cross multiply
    20,625.04x = 30,937.56 × 8,938
  4. Step 4: Simplify right side
    20,625.04x = 276,519,911.28
  5. Step 5: Solve for x
    x = 276,519,911.28/20,625.04
  6. Step 6: Final answer
    x = 13,407.00

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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.