Home / 21,283.98-29,371.86-11,854.77

Finding the Fourth Proportional to 21,283.98, 29,371.86 and 11,854.77

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Solution

The fourth proportional to 21,283.98, 29,371.86 and 11,854.77 is: 16,359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283.98 : 29,371.86 = 11,854.77 : x
  2. Step 2: Convert to fraction form
    21,283.98/29,371.86 = 11,854.77/x
  3. Step 3: Cross multiply
    21,283.98x = 29,371.86 × 11,854.77
  4. Step 4: Simplify right side
    21,283.98x = 348,196,644.77
  5. Step 5: Solve for x
    x = 348,196,644.77/21,283.98
  6. Step 6: Final answer
    x = 16,359.56

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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.