Home / 28,129.44-42,181.84-13,342.58

Finding the Fourth Proportional to 28,129.44, 42,181.84 and 13,342.58

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Solution

The fourth proportional to 28,129.44, 42,181.84 and 13,342.58 is: 20,008.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,129.44 : 42,181.84 = 13,342.58 : x
  2. Step 2: Convert to fraction form
    28,129.44/42,181.84 = 13,342.58/x
  3. Step 3: Cross multiply
    28,129.44x = 42,181.84 × 13,342.58
  4. Step 4: Simplify right side
    28,129.44x = 562,814,574.75
  5. Step 5: Solve for x
    x = 562,814,574.75/28,129.44
  6. Step 6: Final answer
    x = 20,008.03

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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.