Home / 30,407.30-45,608.16-21,560.58

Finding the Fourth Proportional to 30,407.30, 45,608.16 and 21,560.58

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Solution

The fourth proportional to 30,407.30, 45,608.16 and 21,560.58 is: 32,338.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,407.30 : 45,608.16 = 21,560.58 : x
  2. Step 2: Convert to fraction form
    30,407.30/45,608.16 = 21,560.58/x
  3. Step 3: Cross multiply
    30,407.30x = 45,608.16 × 21,560.58
  4. Step 4: Simplify right side
    30,407.30x = 983,338,382.33
  5. Step 5: Solve for x
    x = 983,338,382.33/30,407.30
  6. Step 6: Final answer
    x = 32,338.90

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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.