Home / 28,853.55-43,274.86-10,129.19

Finding the Fourth Proportional to 28,853.55, 43,274.86 and 10,129.19

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Solution

The fourth proportional to 28,853.55, 43,274.86 and 10,129.19 is: 15,191.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,853.55 : 43,274.86 = 10,129.19 : x
  2. Step 2: Convert to fraction form
    28,853.55/43,274.86 = 10,129.19/x
  3. Step 3: Cross multiply
    28,853.55x = 43,274.86 × 10,129.19
  4. Step 4: Simplify right side
    28,853.55x = 438,339,037.47
  5. Step 5: Solve for x
    x = 438,339,037.47/28,853.55
  6. Step 6: Final answer
    x = 15,191.86

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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.