Home / 28,015.88-38,662.46-15,269.01

Finding the Fourth Proportional to 28,015.88, 38,662.46 and 15,269.01

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Solution

The fourth proportional to 28,015.88, 38,662.46 and 15,269.01 is: 21,071.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,015.88 : 38,662.46 = 15,269.01 : x
  2. Step 2: Convert to fraction form
    28,015.88/38,662.46 = 15,269.01/x
  3. Step 3: Cross multiply
    28,015.88x = 38,662.46 × 15,269.01
  4. Step 4: Simplify right side
    28,015.88x = 590,337,410.18
  5. Step 5: Solve for x
    x = 590,337,410.18/28,015.88
  6. Step 6: Final answer
    x = 21,071.53

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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.