Home / 26,143.32-36,083.03-15,530.91

Finding the Fourth Proportional to 26,143.32, 36,083.03 and 15,530.91

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Solution

The fourth proportional to 26,143.32, 36,083.03 and 15,530.91 is: 21,435.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,143.32 : 36,083.03 = 15,530.91 : x
  2. Step 2: Convert to fraction form
    26,143.32/36,083.03 = 15,530.91/x
  3. Step 3: Cross multiply
    26,143.32x = 36,083.03 × 15,530.91
  4. Step 4: Simplify right side
    26,143.32x = 560,402,078.49
  5. Step 5: Solve for x
    x = 560,402,078.49/26,143.32
  6. Step 6: Final answer
    x = 21,435.76

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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.