Home / 30,350.80-41,883.16-16,921.00

Finding the Fourth Proportional to 30,350.80, 41,883.16 and 16,921.00

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Solution

The fourth proportional to 30,350.80, 41,883.16 and 16,921.00 is: 23,350.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,350.80 : 41,883.16 = 16,921.00 : x
  2. Step 2: Convert to fraction form
    30,350.80/41,883.16 = 16,921.00/x
  3. Step 3: Cross multiply
    30,350.80x = 41,883.16 × 16,921.00
  4. Step 4: Simplify right side
    30,350.80x = 708,704,656.34
  5. Step 5: Solve for x
    x = 708,704,656.34/30,350.80
  6. Step 6: Final answer
    x = 23,350.45

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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.