Home / 28,520.07-39,357.81-15,944.82

Finding the Fourth Proportional to 28,520.07, 39,357.81 and 15,944.82

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Solution

The fourth proportional to 28,520.07, 39,357.81 and 15,944.82 is: 22,003.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,520.07 : 39,357.81 = 15,944.82 : x
  2. Step 2: Convert to fraction form
    28,520.07/39,357.81 = 15,944.82/x
  3. Step 3: Cross multiply
    28,520.07x = 39,357.81 × 15,944.82
  4. Step 4: Simplify right side
    28,520.07x = 627,553,196.04
  5. Step 5: Solve for x
    x = 627,553,196.04/28,520.07
  6. Step 6: Final answer
    x = 22,003.91

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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.