Home / 28,035.94-38,689.49-15,289.09

Finding the Fourth Proportional to 28,035.94, 38,689.49 and 15,289.09

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Solution

The fourth proportional to 28,035.94, 38,689.49 and 15,289.09 is: 21,098.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,035.94 : 38,689.49 = 15,289.09 : x
  2. Step 2: Convert to fraction form
    28,035.94/38,689.49 = 15,289.09/x
  3. Step 3: Cross multiply
    28,035.94x = 38,689.49 × 15,289.09
  4. Step 4: Simplify right side
    28,035.94x = 591,527,205.74
  5. Step 5: Solve for x
    x = 591,527,205.74/28,035.94
  6. Step 6: Final answer
    x = 21,098.89

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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.