Home / 30,383.32-41,937.78-17,639.37

Finding the Fourth Proportional to 30,383.32, 41,937.78 and 17,639.37

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Solution

The fourth proportional to 30,383.32, 41,937.78 and 17,639.37 is: 24,347.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,383.32 : 41,937.78 = 17,639.37 : x
  2. Step 2: Convert to fraction form
    30,383.32/41,937.78 = 17,639.37/x
  3. Step 3: Cross multiply
    30,383.32x = 41,937.78 × 17,639.37
  4. Step 4: Simplify right side
    30,383.32x = 739,755,808.71
  5. Step 5: Solve for x
    x = 739,755,808.71/30,383.32
  6. Step 6: Final answer
    x = 24,347.43

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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.