Home / 42,198.96-58,253.68-28,603.86

Finding the Fourth Proportional to 42,198.96, 58,253.68 and 28,603.86

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Solution

The fourth proportional to 42,198.96, 58,253.68 and 28,603.86 is: 39,486.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,198.96 : 58,253.68 = 28,603.86 : x
  2. Step 2: Convert to fraction form
    42,198.96/58,253.68 = 28,603.86/x
  3. Step 3: Cross multiply
    42,198.96x = 58,253.68 × 28,603.86
  4. Step 4: Simplify right side
    42,198.96x = 1,666,280,107.20
  5. Step 5: Solve for x
    x = 1,666,280,107.20/42,198.96
  6. Step 6: Final answer
    x = 39,486.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.