Home / 22,218.60-33,327.90-18,719.40

Finding the Fourth Proportional to 22,218.60, 33,327.90 and 18,719.40

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Solution

The fourth proportional to 22,218.60, 33,327.90 and 18,719.40 is: 28,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,218.60 : 33,327.90 = 18,719.40 : x
  2. Step 2: Convert to fraction form
    22,218.60/33,327.90 = 18,719.40/x
  3. Step 3: Cross multiply
    22,218.60x = 33,327.90 × 18,719.40
  4. Step 4: Simplify right side
    22,218.60x = 623,878,291.26
  5. Step 5: Solve for x
    x = 623,878,291.26/22,218.60
  6. Step 6: Final answer
    x = 28,079.10

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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.