Home / 42,993.12-59,350.66-28,676.90

Finding the Fourth Proportional to 42,993.12, 59,350.66 and 28,676.90

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Solution

The fourth proportional to 42,993.12, 59,350.66 and 28,676.90 is: 39,587.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,993.12 : 59,350.66 = 28,676.90 : x
  2. Step 2: Convert to fraction form
    42,993.12/59,350.66 = 28,676.90/x
  3. Step 3: Cross multiply
    42,993.12x = 59,350.66 × 28,676.90
  4. Step 4: Simplify right side
    42,993.12x = 1,701,992,941.75
  5. Step 5: Solve for x
    x = 1,701,992,941.75/42,993.12
  6. Step 6: Final answer
    x = 39,587.57

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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.