Home / 28,445.56-42,668.37-9,725.78

Finding the Fourth Proportional to 28,445.56, 42,668.37 and 9,725.78

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Solution

The fourth proportional to 28,445.56, 42,668.37 and 9,725.78 is: 14,588.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445.56 : 42,668.37 = 9,725.78 : x
  2. Step 2: Convert to fraction form
    28,445.56/42,668.37 = 9,725.78/x
  3. Step 3: Cross multiply
    28,445.56x = 42,668.37 × 9,725.78
  4. Step 4: Simplify right side
    28,445.56x = 414,983,179.58
  5. Step 5: Solve for x
    x = 414,983,179.58/28,445.56
  6. Step 6: Final answer
    x = 14,588.68

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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.