Home / 30,393.16-41,938.80-16,965.16

Finding the Fourth Proportional to 30,393.16, 41,938.80 and 16,965.16

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Solution

The fourth proportional to 30,393.16, 41,938.80 and 16,965.16 is: 23,409.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,393.16 : 41,938.80 = 16,965.16 : x
  2. Step 2: Convert to fraction form
    30,393.16/41,938.80 = 16,965.16/x
  3. Step 3: Cross multiply
    30,393.16x = 41,938.80 × 16,965.16
  4. Step 4: Simplify right side
    30,393.16x = 711,498,452.21
  5. Step 5: Solve for x
    x = 711,498,452.21/30,393.16
  6. Step 6: Final answer
    x = 23,409.82

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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.