Home / 30,373.38-41,919.88-18,434.41

Finding the Fourth Proportional to 30,373.38, 41,919.88 and 18,434.41

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Solution

The fourth proportional to 30,373.38, 41,919.88 and 18,434.41 is: 25,442.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,373.38 : 41,919.88 = 18,434.41 : x
  2. Step 2: Convert to fraction form
    30,373.38/41,919.88 = 18,434.41/x
  3. Step 3: Cross multiply
    30,373.38x = 41,919.88 × 18,434.41
  4. Step 4: Simplify right side
    30,373.38x = 772,768,255.07
  5. Step 5: Solve for x
    x = 772,768,255.07/30,373.38
  6. Step 6: Final answer
    x = 25,442.29

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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.