Home / 28,036.05-38,689.26-15,289.33

Finding the Fourth Proportional to 28,036.05, 38,689.26 and 15,289.33

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Solution

The fourth proportional to 28,036.05, 38,689.26 and 15,289.33 is: 21,099.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.05 : 38,689.26 = 15,289.33 : x
  2. Step 2: Convert to fraction form
    28,036.05/38,689.26 = 15,289.33/x
  3. Step 3: Cross multiply
    28,036.05x = 38,689.26 × 15,289.33
  4. Step 4: Simplify right side
    28,036.05x = 591,532,709.54
  5. Step 5: Solve for x
    x = 591,532,709.54/28,036.05
  6. Step 6: Final answer
    x = 21,099.01

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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.