Home / 30,338.80-45,452.72-21,998.16

Finding the Fourth Proportional to 30,338.80, 45,452.72 and 21,998.16

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Solution

The fourth proportional to 30,338.80, 45,452.72 and 21,998.16 is: 32,957.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,338.80 : 45,452.72 = 21,998.16 : x
  2. Step 2: Convert to fraction form
    30,338.80/45,452.72 = 21,998.16/x
  3. Step 3: Cross multiply
    30,338.80x = 45,452.72 × 21,998.16
  4. Step 4: Simplify right side
    30,338.80x = 999,876,207.00
  5. Step 5: Solve for x
    x = 999,876,207.00/30,338.80
  6. Step 6: Final answer
    x = 32,957.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.