Home / 28,520.49-39,358.37-15,945.24

Finding the Fourth Proportional to 28,520.49, 39,358.37 and 15,945.24

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Solution

The fourth proportional to 28,520.49, 39,358.37 and 15,945.24 is: 22,004.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,520.49 : 39,358.37 = 15,945.24 : x
  2. Step 2: Convert to fraction form
    28,520.49/39,358.37 = 15,945.24/x
  3. Step 3: Cross multiply
    28,520.49x = 39,358.37 × 15,945.24
  4. Step 4: Simplify right side
    28,520.49x = 627,578,655.66
  5. Step 5: Solve for x
    x = 627,578,655.66/28,520.49
  6. Step 6: Final answer
    x = 22,004.48

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Double scale
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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.