Home / 20,466.79-30,667.39-18,498.49

Finding the Fourth Proportional to 20,466.79, 30,667.39 and 18,498.49

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Solution

The fourth proportional to 20,466.79, 30,667.39 and 18,498.49 is: 27,718.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466.79 : 30,667.39 = 18,498.49 : x
  2. Step 2: Convert to fraction form
    20,466.79/30,667.39 = 18,498.49/x
  3. Step 3: Cross multiply
    20,466.79x = 30,667.39 × 18,498.49
  4. Step 4: Simplify right side
    20,466.79x = 567,300,407.24
  5. Step 5: Solve for x
    x = 567,300,407.24/20,466.79
  6. Step 6: Final answer
    x = 27,718.09

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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.