Home / 28,194.67-42,310.23-13,420.27

Finding the Fourth Proportional to 28,194.67, 42,310.23 and 13,420.27

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Solution

The fourth proportional to 28,194.67, 42,310.23 and 13,420.27 is: 20,139.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,194.67 : 42,310.23 = 13,420.27 : x
  2. Step 2: Convert to fraction form
    28,194.67/42,310.23 = 13,420.27/x
  3. Step 3: Cross multiply
    28,194.67x = 42,310.23 × 13,420.27
  4. Step 4: Simplify right side
    28,194.67x = 567,814,710.36
  5. Step 5: Solve for x
    x = 567,814,710.36/28,194.67
  6. Step 6: Final answer
    x = 20,139.08

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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.