Home / 28,442.26-42,667.43-15,111.77

Finding the Fourth Proportional to 28,442.26, 42,667.43 and 15,111.77

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Solution

The fourth proportional to 28,442.26, 42,667.43 and 15,111.77 is: 22,669.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,442.26 : 42,667.43 = 15,111.77 : x
  2. Step 2: Convert to fraction form
    28,442.26/42,667.43 = 15,111.77/x
  3. Step 3: Cross multiply
    28,442.26x = 42,667.43 × 15,111.77
  4. Step 4: Simplify right side
    28,442.26x = 644,780,449.45
  5. Step 5: Solve for x
    x = 644,780,449.45/28,442.26
  6. Step 6: Final answer
    x = 22,669.81

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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.