Home / 19,647.24-27,113.58-15,403.38

Finding the Fourth Proportional to 19,647.24, 27,113.58 and 15,403.38

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Solution

The fourth proportional to 19,647.24, 27,113.58 and 15,403.38 is: 21,256.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,647.24 : 27,113.58 = 15,403.38 : x
  2. Step 2: Convert to fraction form
    19,647.24/27,113.58 = 15,403.38/x
  3. Step 3: Cross multiply
    19,647.24x = 27,113.58 × 15,403.38
  4. Step 4: Simplify right side
    19,647.24x = 417,640,775.90
  5. Step 5: Solve for x
    x = 417,640,775.90/19,647.24
  6. Step 6: Final answer
    x = 21,256.97

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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.