Home / 26,120.64-36,046.56-15,510.72

Finding the Fourth Proportional to 26,120.64, 36,046.56 and 15,510.72

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Solution

The fourth proportional to 26,120.64, 36,046.56 and 15,510.72 is: 21,404.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,120.64 : 36,046.56 = 15,510.72 : x
  2. Step 2: Convert to fraction form
    26,120.64/36,046.56 = 15,510.72/x
  3. Step 3: Cross multiply
    26,120.64x = 36,046.56 × 15,510.72
  4. Step 4: Simplify right side
    26,120.64x = 559,108,099.12
  5. Step 5: Solve for x
    x = 559,108,099.12/26,120.64
  6. Step 6: Final answer
    x = 21,404.84

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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.