Home / 21,292.74-29,383.98-12,345.44

Finding the Fourth Proportional to 21,292.74, 29,383.98 and 12,345.44

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Solution

The fourth proportional to 21,292.74, 29,383.98 and 12,345.44 is: 17,036.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,292.74 : 29,383.98 = 12,345.44 : x
  2. Step 2: Convert to fraction form
    21,292.74/29,383.98 = 12,345.44/x
  3. Step 3: Cross multiply
    21,292.74x = 29,383.98 × 12,345.44
  4. Step 4: Simplify right side
    21,292.74x = 362,758,162.05
  5. Step 5: Solve for x
    x = 362,758,162.05/21,292.74
  6. Step 6: Final answer
    x = 17,036.71

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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.