Home / 21,277.14-29,368.86-12,326.82

Finding the Fourth Proportional to 21,277.14, 29,368.86 and 12,326.82

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Solution

The fourth proportional to 21,277.14, 29,368.86 and 12,326.82 is: 17,014.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.14 : 29,368.86 = 12,326.82 : x
  2. Step 2: Convert to fraction form
    21,277.14/29,368.86 = 12,326.82/x
  3. Step 3: Cross multiply
    21,277.14x = 29,368.86 × 12,326.82
  4. Step 4: Simplify right side
    21,277.14x = 362,024,650.83
  5. Step 5: Solve for x
    x = 362,024,650.83/21,277.14
  6. Step 6: Final answer
    x = 17,014.72

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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.