Home / 40,118.94-55,306.44-28,145.16

Finding the Fourth Proportional to 40,118.94, 55,306.44 and 28,145.16

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Solution

The fourth proportional to 40,118.94, 55,306.44 and 28,145.16 is: 38,799.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,118.94 : 55,306.44 = 28,145.16 : x
  2. Step 2: Convert to fraction form
    40,118.94/55,306.44 = 28,145.16/x
  3. Step 3: Cross multiply
    40,118.94x = 55,306.44 × 28,145.16
  4. Step 4: Simplify right side
    40,118.94x = 1,556,608,602.83
  5. Step 5: Solve for x
    x = 1,556,608,602.83/40,118.94
  6. Step 6: Final answer
    x = 38,799.84

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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.