Home / 28,080.74-38,742.09-18,525.37

Finding the Fourth Proportional to 28,080.74, 38,742.09 and 18,525.37

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Solution

The fourth proportional to 28,080.74, 38,742.09 and 18,525.37 is: 25,558.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,080.74 : 38,742.09 = 18,525.37 : x
  2. Step 2: Convert to fraction form
    28,080.74/38,742.09 = 18,525.37/x
  3. Step 3: Cross multiply
    28,080.74x = 38,742.09 × 18,525.37
  4. Step 4: Simplify right side
    28,080.74x = 717,711,459.20
  5. Step 5: Solve for x
    x = 717,711,459.20/28,080.74
  6. Step 6: Final answer
    x = 25,558.86

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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.