Home / 30,908.36-42,652.86-17,480.18

Finding the Fourth Proportional to 30,908.36, 42,652.86 and 17,480.18

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Solution

The fourth proportional to 30,908.36, 42,652.86 and 17,480.18 is: 24,122.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,908.36 : 42,652.86 = 17,480.18 : x
  2. Step 2: Convert to fraction form
    30,908.36/42,652.86 = 17,480.18/x
  3. Step 3: Cross multiply
    30,908.36x = 42,652.86 × 17,480.18
  4. Step 4: Simplify right side
    30,908.36x = 745,579,670.31
  5. Step 5: Solve for x
    x = 745,579,670.31/30,908.36
  6. Step 6: Final answer
    x = 24,122.27

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Double scale
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Similar ratio
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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.