Home / 30,210.96-41,688.84-16,781.07

Finding the Fourth Proportional to 30,210.96, 41,688.84 and 16,781.07

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Solution

The fourth proportional to 30,210.96, 41,688.84 and 16,781.07 is: 23,156.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,210.96 : 41,688.84 = 16,781.07 : x
  2. Step 2: Convert to fraction form
    30,210.96/41,688.84 = 16,781.07/x
  3. Step 3: Cross multiply
    30,210.96x = 41,688.84 × 16,781.07
  4. Step 4: Simplify right side
    30,210.96x = 699,583,342.26
  5. Step 5: Solve for x
    x = 699,583,342.26/30,210.96
  6. Step 6: Final answer
    x = 23,156.61

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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.