Home / 30,210.06-41,689.32-16,781.18

Finding the Fourth Proportional to 30,210.06, 41,689.32 and 16,781.18

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Solution

The fourth proportional to 30,210.06, 41,689.32 and 16,781.18 is: 23,157.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,210.06 : 41,689.32 = 16,781.18 : x
  2. Step 2: Convert to fraction form
    30,210.06/41,689.32 = 16,781.18/x
  3. Step 3: Cross multiply
    30,210.06x = 41,689.32 × 16,781.18
  4. Step 4: Simplify right side
    30,210.06x = 699,595,983.00
  5. Step 5: Solve for x
    x = 699,595,983.00/30,210.06
  6. Step 6: Final answer
    x = 23,157.72

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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.