Home / 28,383.44-42,575.13-13,387.06

Finding the Fourth Proportional to 28,383.44, 42,575.13 and 13,387.06

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Solution

The fourth proportional to 28,383.44, 42,575.13 and 13,387.06 is: 20,080.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,383.44 : 42,575.13 = 13,387.06 : x
  2. Step 2: Convert to fraction form
    28,383.44/42,575.13 = 13,387.06/x
  3. Step 3: Cross multiply
    28,383.44x = 42,575.13 × 13,387.06
  4. Step 4: Simplify right side
    28,383.44x = 569,955,819.82
  5. Step 5: Solve for x
    x = 569,955,819.82/28,383.44
  6. Step 6: Final answer
    x = 20,080.58

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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.