Home / 22,171.79-30,589.35-14,218.40

Finding the Fourth Proportional to 22,171.79, 30,589.35 and 14,218.40

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Solution

The fourth proportional to 22,171.79, 30,589.35 and 14,218.40 is: 19,616.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,171.79 : 30,589.35 = 14,218.40 : x
  2. Step 2: Convert to fraction form
    22,171.79/30,589.35 = 14,218.40/x
  3. Step 3: Cross multiply
    22,171.79x = 30,589.35 × 14,218.40
  4. Step 4: Simplify right side
    22,171.79x = 434,931,614.04
  5. Step 5: Solve for x
    x = 434,931,614.04/22,171.79
  6. Step 6: Final answer
    x = 19,616.44

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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.