Home / 35,118.24-48,462.72-20,989.92

Finding the Fourth Proportional to 35,118.24, 48,462.72 and 20,989.92

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Solution

The fourth proportional to 35,118.24, 48,462.72 and 20,989.92 is: 28,965.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,118.24 : 48,462.72 = 20,989.92 : x
  2. Step 2: Convert to fraction form
    35,118.24/48,462.72 = 20,989.92/x
  3. Step 3: Cross multiply
    35,118.24x = 48,462.72 × 20,989.92
  4. Step 4: Simplify right side
    35,118.24x = 1,017,228,615.78
  5. Step 5: Solve for x
    x = 1,017,228,615.78/35,118.24
  6. Step 6: Final answer
    x = 28,965.82

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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.