Home / 40,017.56-55,193.10-28,370.42

Finding the Fourth Proportional to 40,017.56, 55,193.10 and 28,370.42

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Solution

The fourth proportional to 40,017.56, 55,193.10 and 28,370.42 is: 39,129.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,017.56 : 55,193.10 = 28,370.42 : x
  2. Step 2: Convert to fraction form
    40,017.56/55,193.10 = 28,370.42/x
  3. Step 3: Cross multiply
    40,017.56x = 55,193.10 × 28,370.42
  4. Step 4: Simplify right side
    40,017.56x = 1,565,851,252.72
  5. Step 5: Solve for x
    x = 1,565,851,252.72/40,017.56
  6. Step 6: Final answer
    x = 39,129.10

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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.