Home / 30,608.96-45,644.08-28,185.44

Finding the Fourth Proportional to 30,608.96, 45,644.08 and 28,185.44

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Solution

The fourth proportional to 30,608.96, 45,644.08 and 28,185.44 is: 42,030.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,608.96 : 45,644.08 = 28,185.44 : x
  2. Step 2: Convert to fraction form
    30,608.96/45,644.08 = 28,185.44/x
  3. Step 3: Cross multiply
    30,608.96x = 45,644.08 × 28,185.44
  4. Step 4: Simplify right side
    30,608.96x = 1,286,498,478.20
  5. Step 5: Solve for x
    x = 1,286,498,478.20/30,608.96
  6. Step 6: Final answer
    x = 42,030.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.