Home / 30,899.54-42,640.84-17,470.28

Finding the Fourth Proportional to 30,899.54, 42,640.84 and 17,470.28

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Solution

The fourth proportional to 30,899.54, 42,640.84 and 17,470.28 is: 24,108.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,899.54 : 42,640.84 = 17,470.28 : x
  2. Step 2: Convert to fraction form
    30,899.54/42,640.84 = 17,470.28/x
  3. Step 3: Cross multiply
    30,899.54x = 42,640.84 × 17,470.28
  4. Step 4: Simplify right side
    30,899.54x = 744,947,414.24
  5. Step 5: Solve for x
    x = 744,947,414.24/30,899.54
  6. Step 6: Final answer
    x = 24,108.69

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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.