Home / 30,187.80-41,657.16-16,758.39

Finding the Fourth Proportional to 30,187.80, 41,657.16 and 16,758.39

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Solution

The fourth proportional to 30,187.80, 41,657.16 and 16,758.39 is: 23,125.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,187.80 : 41,657.16 = 16,758.39 : x
  2. Step 2: Convert to fraction form
    30,187.80/41,657.16 = 16,758.39/x
  3. Step 3: Cross multiply
    30,187.80x = 41,657.16 × 16,758.39
  4. Step 4: Simplify right side
    30,187.80x = 698,106,933.57
  5. Step 5: Solve for x
    x = 698,106,933.57/30,187.80
  6. Step 6: Final answer
    x = 23,125.47

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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.