Home / 21,277.66-29,360.60-12,323.92

Finding the Fourth Proportional to 21,277.66, 29,360.60 and 12,323.92

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Solution

The fourth proportional to 21,277.66, 29,360.60 and 12,323.92 is: 17,005.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.66 : 29,360.60 = 12,323.92 : x
  2. Step 2: Convert to fraction form
    21,277.66/29,360.60 = 12,323.92/x
  3. Step 3: Cross multiply
    21,277.66x = 29,360.60 × 12,323.92
  4. Step 4: Simplify right side
    21,277.66x = 361,837,685.55
  5. Step 5: Solve for x
    x = 361,837,685.55/21,277.66
  6. Step 6: Final answer
    x = 17,005.52

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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.