Home / 26,131.06-36,061.44-15,520.72

Finding the Fourth Proportional to 26,131.06, 36,061.44 and 15,520.72

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Solution

The fourth proportional to 26,131.06, 36,061.44 and 15,520.72 is: 21,418.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,131.06 : 36,061.44 = 15,520.72 : x
  2. Step 2: Convert to fraction form
    26,131.06/36,061.44 = 15,520.72/x
  3. Step 3: Cross multiply
    26,131.06x = 36,061.44 × 15,520.72
  4. Step 4: Simplify right side
    26,131.06x = 559,699,513.04
  5. Step 5: Solve for x
    x = 559,699,513.04/26,131.06
  6. Step 6: Final answer
    x = 21,418.94

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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.