Home / 23,036.64-31,781.16-13,339.68

Finding the Fourth Proportional to 23,036.64, 31,781.16 and 13,339.68

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Solution

The fourth proportional to 23,036.64, 31,781.16 and 13,339.68 is: 18,403.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,036.64 : 31,781.16 = 13,339.68 : x
  2. Step 2: Convert to fraction form
    23,036.64/31,781.16 = 13,339.68/x
  3. Step 3: Cross multiply
    23,036.64x = 31,781.16 × 13,339.68
  4. Step 4: Simplify right side
    23,036.64x = 423,950,504.43
  5. Step 5: Solve for x
    x = 423,950,504.43/23,036.64
  6. Step 6: Final answer
    x = 18,403.31

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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.