Home / 30,660.32-42,302.52-17,230.16

Finding the Fourth Proportional to 30,660.32, 42,302.52 and 17,230.16

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Solution

The fourth proportional to 30,660.32, 42,302.52 and 17,230.16 is: 23,772.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,660.32 : 42,302.52 = 17,230.16 : x
  2. Step 2: Convert to fraction form
    30,660.32/42,302.52 = 17,230.16/x
  3. Step 3: Cross multiply
    30,660.32x = 42,302.52 × 17,230.16
  4. Step 4: Simplify right side
    30,660.32x = 728,879,188.00
  5. Step 5: Solve for x
    x = 728,879,188.00/30,660.32
  6. Step 6: Final answer
    x = 23,772.72

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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.