Home / 28,051.86-42,076.14-10,520.22

Finding the Fourth Proportional to 28,051.86, 42,076.14 and 10,520.22

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Solution

The fourth proportional to 28,051.86, 42,076.14 and 10,520.22 is: 15,779.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.86 : 42,076.14 = 10,520.22 : x
  2. Step 2: Convert to fraction form
    28,051.86/42,076.14 = 10,520.22/x
  3. Step 3: Cross multiply
    28,051.86x = 42,076.14 × 10,520.22
  4. Step 4: Simplify right side
    28,051.86x = 442,650,249.55
  5. Step 5: Solve for x
    x = 442,650,249.55/28,051.86
  6. Step 6: Final answer
    x = 15,779.71

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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.