Home / 18,900.13-28,353.25-5,749.41

Finding the Fourth Proportional to 18,900.13, 28,353.25 and 5,749.41

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Solution

The fourth proportional to 18,900.13, 28,353.25 and 5,749.41 is: 8,625.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900.13 : 28,353.25 = 5,749.41 : x
  2. Step 2: Convert to fraction form
    18,900.13/28,353.25 = 5,749.41/x
  3. Step 3: Cross multiply
    18,900.13x = 28,353.25 × 5,749.41
  4. Step 4: Simplify right side
    18,900.13x = 163,014,338.38
  5. Step 5: Solve for x
    x = 163,014,338.38/18,900.13
  6. Step 6: Final answer
    x = 8,625.04

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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.