Home / 30,573.08-42,154.84-28,305.90

Finding the Fourth Proportional to 30,573.08, 42,154.84 and 28,305.90

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Solution

The fourth proportional to 30,573.08, 42,154.84 and 28,305.90 is: 39,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,573.08 : 42,154.84 = 28,305.90 : x
  2. Step 2: Convert to fraction form
    30,573.08/42,154.84 = 28,305.90/x
  3. Step 3: Cross multiply
    30,573.08x = 42,154.84 × 28,305.90
  4. Step 4: Simplify right side
    30,573.08x = 1,193,230,685.56
  5. Step 5: Solve for x
    x = 1,193,230,685.56/30,573.08
  6. Step 6: Final answer
    x = 39,028.80

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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.