Home / 26,731.13-36,879.93-15,400.32

Finding the Fourth Proportional to 26,731.13, 36,879.93 and 15,400.32

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Solution

The fourth proportional to 26,731.13, 36,879.93 and 15,400.32 is: 21,247.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,731.13 : 36,879.93 = 15,400.32 : x
  2. Step 2: Convert to fraction form
    26,731.13/36,879.93 = 15,400.32/x
  3. Step 3: Cross multiply
    26,731.13x = 36,879.93 × 15,400.32
  4. Step 4: Simplify right side
    26,731.13x = 567,962,792.73
  5. Step 5: Solve for x
    x = 567,962,792.73/26,731.13
  6. Step 6: Final answer
    x = 21,247.25

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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.