Home / 40,078.09-55,308.02-22,173.40

Finding the Fourth Proportional to 40,078.09, 55,308.02 and 22,173.40

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Solution

The fourth proportional to 40,078.09, 55,308.02 and 22,173.40 is: 30,599.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,078.09 : 55,308.02 = 22,173.40 : x
  2. Step 2: Convert to fraction form
    40,078.09/55,308.02 = 22,173.40/x
  3. Step 3: Cross multiply
    40,078.09x = 55,308.02 × 22,173.40
  4. Step 4: Simplify right side
    40,078.09x = 1,226,366,497.83
  5. Step 5: Solve for x
    x = 1,226,366,497.83/40,078.09
  6. Step 6: Final answer
    x = 30,599.42

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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.