Home / 30,806.32-42,512.52-16,659.10

Finding the Fourth Proportional to 30,806.32, 42,512.52 and 16,659.10

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Solution

The fourth proportional to 30,806.32, 42,512.52 and 16,659.10 is: 22,989.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,806.32 : 42,512.52 = 16,659.10 : x
  2. Step 2: Convert to fraction form
    30,806.32/42,512.52 = 16,659.10/x
  3. Step 3: Cross multiply
    30,806.32x = 42,512.52 × 16,659.10
  4. Step 4: Simplify right side
    30,806.32x = 708,220,321.93
  5. Step 5: Solve for x
    x = 708,220,321.93/30,806.32
  6. Step 6: Final answer
    x = 22,989.45

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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.