Home / 30,208.10-41,685.73-16,780.22

Finding the Fourth Proportional to 30,208.10, 41,685.73 and 16,780.22

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Solution

The fourth proportional to 30,208.10, 41,685.73 and 16,780.22 is: 23,155.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,208.10 : 41,685.73 = 16,780.22 : x
  2. Step 2: Convert to fraction form
    30,208.10/41,685.73 = 16,780.22/x
  3. Step 3: Cross multiply
    30,208.10x = 41,685.73 × 16,780.22
  4. Step 4: Simplify right side
    30,208.10x = 699,495,720.26
  5. Step 5: Solve for x
    x = 699,495,720.26/30,208.10
  6. Step 6: Final answer
    x = 23,155.90

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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.