Home / 30,372.96-41,918.76-18,436.44

Finding the Fourth Proportional to 30,372.96, 41,918.76 and 18,436.44

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Solution

The fourth proportional to 30,372.96, 41,918.76 and 18,436.44 is: 25,444.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,372.96 : 41,918.76 = 18,436.44 : x
  2. Step 2: Convert to fraction form
    30,372.96/41,918.76 = 18,436.44/x
  3. Step 3: Cross multiply
    30,372.96x = 41,918.76 × 18,436.44
  4. Step 4: Simplify right side
    30,372.96x = 772,832,703.61
  5. Step 5: Solve for x
    x = 772,832,703.61/30,372.96
  6. Step 6: Final answer
    x = 25,444.76

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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.