Home / 30,113.87-45,175.26-28,268.69

Finding the Fourth Proportional to 30,113.87, 45,175.26 and 28,268.69

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Solution

The fourth proportional to 30,113.87, 45,175.26 and 28,268.69 is: 42,407.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,113.87 : 45,175.26 = 28,268.69 : x
  2. Step 2: Convert to fraction form
    30,113.87/45,175.26 = 28,268.69/x
  3. Step 3: Cross multiply
    30,113.87x = 45,175.26 × 28,268.69
  4. Step 4: Simplify right side
    30,113.87x = 1,277,045,420.61
  5. Step 5: Solve for x
    x = 1,277,045,420.61/30,113.87
  6. Step 6: Final answer
    x = 42,407.22

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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.