Home / 18,204.48-27,307.68-10,420.80

Finding the Fourth Proportional to 18,204.48, 27,307.68 and 10,420.80

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Solution

The fourth proportional to 18,204.48, 27,307.68 and 10,420.80 is: 15,631.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,204.48 : 27,307.68 = 10,420.80 : x
  2. Step 2: Convert to fraction form
    18,204.48/27,307.68 = 10,420.80/x
  3. Step 3: Cross multiply
    18,204.48x = 27,307.68 × 10,420.80
  4. Step 4: Simplify right side
    18,204.48x = 284,567,871.74
  5. Step 5: Solve for x
    x = 284,567,871.74/18,204.48
  6. Step 6: Final answer
    x = 15,631.75

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1.5x scale

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.