Home / 28,748.55-43,130-10,028.85

Finding the Fourth Proportional to 28,748.55, 43,130 and 10,028.85

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Solution

The fourth proportional to 28,748.55, 43,130 and 10,028.85 is: 15,045.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748.55 : 43,130 = 10,028.85 : x
  2. Step 2: Convert to fraction form
    28,748.55/43,130 = 10,028.85/x
  3. Step 3: Cross multiply
    28,748.55x = 43,130 × 10,028.85
  4. Step 4: Simplify right side
    28,748.55x = 432,544,300.50
  5. Step 5: Solve for x
    x = 432,544,300.50/28,748.55
  6. Step 6: Final answer
    x = 15,045.78

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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.