Home / 26,128.98-36,046.08-15,512.58

Finding the Fourth Proportional to 26,128.98, 36,046.08 and 15,512.58

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Solution

The fourth proportional to 26,128.98, 36,046.08 and 15,512.58 is: 21,400.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,128.98 : 36,046.08 = 15,512.58 : x
  2. Step 2: Convert to fraction form
    26,128.98/36,046.08 = 15,512.58/x
  3. Step 3: Cross multiply
    26,128.98x = 36,046.08 × 15,512.58
  4. Step 4: Simplify right side
    26,128.98x = 559,167,699.69
  5. Step 5: Solve for x
    x = 559,167,699.69/26,128.98
  6. Step 6: Final answer
    x = 21,400.29

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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.