Home / 30,899.19-42,640.43-17,469.99

Finding the Fourth Proportional to 30,899.19, 42,640.43 and 17,469.99

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Solution

The fourth proportional to 30,899.19, 42,640.43 and 17,469.99 is: 24,108.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,899.19 : 42,640.43 = 17,469.99 : x
  2. Step 2: Convert to fraction form
    30,899.19/42,640.43 = 17,469.99/x
  3. Step 3: Cross multiply
    30,899.19x = 42,640.43 × 17,469.99
  4. Step 4: Simplify right side
    30,899.19x = 744,927,798.35
  5. Step 5: Solve for x
    x = 744,927,798.35/30,899.19
  6. Step 6: Final answer
    x = 24,108.33

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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.