Home / 30,143.52-41,588.10-18,202.32

Finding the Fourth Proportional to 30,143.52, 41,588.10 and 18,202.32

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Solution

The fourth proportional to 30,143.52, 41,588.10 and 18,202.32 is: 25,113.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,143.52 : 41,588.10 = 18,202.32 : x
  2. Step 2: Convert to fraction form
    30,143.52/41,588.10 = 18,202.32/x
  3. Step 3: Cross multiply
    30,143.52x = 41,588.10 × 18,202.32
  4. Step 4: Simplify right side
    30,143.52x = 756,999,904.39
  5. Step 5: Solve for x
    x = 756,999,904.39/30,143.52
  6. Step 6: Final answer
    x = 25,113.19

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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.