Home / 30,561.77-42,176.43-17,133.32

Finding the Fourth Proportional to 30,561.77, 42,176.43 and 17,133.32

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Solution

The fourth proportional to 30,561.77, 42,176.43 and 17,133.32 is: 23,644.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,561.77 : 42,176.43 = 17,133.32 : x
  2. Step 2: Convert to fraction form
    30,561.77/42,176.43 = 17,133.32/x
  3. Step 3: Cross multiply
    30,561.77x = 42,176.43 × 17,133.32
  4. Step 4: Simplify right side
    30,561.77x = 722,622,377.09
  5. Step 5: Solve for x
    x = 722,622,377.09/30,561.77
  6. Step 6: Final answer
    x = 23,644.65

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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.