Home / 21,276.93-29,357.71-12,323.90

Finding the Fourth Proportional to 21,276.93, 29,357.71 and 12,323.90

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Solution

The fourth proportional to 21,276.93, 29,357.71 and 12,323.90 is: 17,004.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.93 : 29,357.71 = 12,323.90 : x
  2. Step 2: Convert to fraction form
    21,276.93/29,357.71 = 12,323.90/x
  3. Step 3: Cross multiply
    21,276.93x = 29,357.71 × 12,323.90
  4. Step 4: Simplify right side
    21,276.93x = 361,801,482.27
  5. Step 5: Solve for x
    x = 361,801,482.27/21,276.93
  6. Step 6: Final answer
    x = 17,004.40

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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.