Home / 40,049.04-55,280.79-28,115.31

Finding the Fourth Proportional to 40,049.04, 55,280.79 and 28,115.31

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Solution

The fourth proportional to 40,049.04, 55,280.79 and 28,115.31 is: 38,808.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,049.04 : 55,280.79 = 28,115.31 : x
  2. Step 2: Convert to fraction form
    40,049.04/55,280.79 = 28,115.31/x
  3. Step 3: Cross multiply
    40,049.04x = 55,280.79 × 28,115.31
  4. Step 4: Simplify right side
    40,049.04x = 1,554,236,547.89
  5. Step 5: Solve for x
    x = 1,554,236,547.89/40,049.04
  6. Step 6: Final answer
    x = 38,808.33

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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.