Home / 30,947.06-42,707.46-16,799.91

Finding the Fourth Proportional to 30,947.06, 42,707.46 and 16,799.91

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Solution

The fourth proportional to 30,947.06, 42,707.46 and 16,799.91 is: 23,184.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,947.06 : 42,707.46 = 16,799.91 : x
  2. Step 2: Convert to fraction form
    30,947.06/42,707.46 = 16,799.91/x
  3. Step 3: Cross multiply
    30,947.06x = 42,707.46 × 16,799.91
  4. Step 4: Simplify right side
    30,947.06x = 717,481,339.93
  5. Step 5: Solve for x
    x = 717,481,339.93/30,947.06
  6. Step 6: Final answer
    x = 23,184.15

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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.