Home / 30,618.72-42,256.27-17,190.85

Finding the Fourth Proportional to 30,618.72, 42,256.27 and 17,190.85

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Solution

The fourth proportional to 30,618.72, 42,256.27 and 17,190.85 is: 23,724.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,618.72 : 42,256.27 = 17,190.85 : x
  2. Step 2: Convert to fraction form
    30,618.72/42,256.27 = 17,190.85/x
  3. Step 3: Cross multiply
    30,618.72x = 42,256.27 × 17,190.85
  4. Step 4: Simplify right side
    30,618.72x = 726,421,156.15
  5. Step 5: Solve for x
    x = 726,421,156.15/30,618.72
  6. Step 6: Final answer
    x = 23,724.74

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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.