Home / 35,346.21-48,780.09-20,240.91

Finding the Fourth Proportional to 35,346.21, 48,780.09 and 20,240.91

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Solution

The fourth proportional to 35,346.21, 48,780.09 and 20,240.91 is: 27,933.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,346.21 : 48,780.09 = 20,240.91 : x
  2. Step 2: Convert to fraction form
    35,346.21/48,780.09 = 20,240.91/x
  3. Step 3: Cross multiply
    35,346.21x = 48,780.09 × 20,240.91
  4. Step 4: Simplify right side
    35,346.21x = 987,353,411.48
  5. Step 5: Solve for x
    x = 987,353,411.48/35,346.21
  6. Step 6: Final answer
    x = 27,933.78

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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.