Home / 30,249.86-45,343.80-10,512.18

Finding the Fourth Proportional to 30,249.86, 45,343.80 and 10,512.18

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Solution

The fourth proportional to 30,249.86, 45,343.80 and 10,512.18 is: 15,757.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,249.86 : 45,343.80 = 10,512.18 : x
  2. Step 2: Convert to fraction form
    30,249.86/45,343.80 = 10,512.18/x
  3. Step 3: Cross multiply
    30,249.86x = 45,343.80 × 10,512.18
  4. Step 4: Simplify right side
    30,249.86x = 476,662,187.48
  5. Step 5: Solve for x
    x = 476,662,187.48/30,249.86
  6. Step 6: Final answer
    x = 15,757.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.