Home / 30,057.12-41,478.60-16,809.12

Finding the Fourth Proportional to 30,057.12, 41,478.60 and 16,809.12

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Solution

The fourth proportional to 30,057.12, 41,478.60 and 16,809.12 is: 23,196.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,057.12 : 41,478.60 = 16,809.12 : x
  2. Step 2: Convert to fraction form
    30,057.12/41,478.60 = 16,809.12/x
  3. Step 3: Cross multiply
    30,057.12x = 41,478.60 × 16,809.12
  4. Step 4: Simplify right side
    30,057.12x = 697,218,764.83
  5. Step 5: Solve for x
    x = 697,218,764.83/30,057.12
  6. Step 6: Final answer
    x = 23,196.46

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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.