Home / 18,420.89-27,623.23-5,270.27

Finding the Fourth Proportional to 18,420.89, 27,623.23 and 5,270.27

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Solution

The fourth proportional to 18,420.89, 27,623.23 and 5,270.27 is: 7,903.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420.89 : 27,623.23 = 5,270.27 : x
  2. Step 2: Convert to fraction form
    18,420.89/27,623.23 = 5,270.27/x
  3. Step 3: Cross multiply
    18,420.89x = 27,623.23 × 5,270.27
  4. Step 4: Simplify right side
    18,420.89x = 145,581,729.08
  5. Step 5: Solve for x
    x = 145,581,729.08/18,420.89
  6. Step 6: Final answer
    x = 7,903.08

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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.