Home / 28,243.60-42,357.97-13,423.03

Finding the Fourth Proportional to 28,243.60, 42,357.97 and 13,423.03

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Solution

The fourth proportional to 28,243.60, 42,357.97 and 13,423.03 is: 20,131.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243.60 : 42,357.97 = 13,423.03 : x
  2. Step 2: Convert to fraction form
    28,243.60/42,357.97 = 13,423.03/x
  3. Step 3: Cross multiply
    28,243.60x = 42,357.97 × 13,423.03
  4. Step 4: Simplify right side
    28,243.60x = 568,572,023.14
  5. Step 5: Solve for x
    x = 568,572,023.14/28,243.60
  6. Step 6: Final answer
    x = 20,131.01

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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.