Home / 21,284.73-29,373.12-11,853.48

Finding the Fourth Proportional to 21,284.73, 29,373.12 and 11,853.48

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Solution

The fourth proportional to 21,284.73, 29,373.12 and 11,853.48 is: 16,357.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,284.73 : 29,373.12 = 11,853.48 : x
  2. Step 2: Convert to fraction form
    21,284.73/29,373.12 = 11,853.48/x
  3. Step 3: Cross multiply
    21,284.73x = 29,373.12 × 11,853.48
  4. Step 4: Simplify right side
    21,284.73x = 348,173,690.46
  5. Step 5: Solve for x
    x = 348,173,690.46/21,284.73
  6. Step 6: Final answer
    x = 16,357.91

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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.