Home / 21,203.96-29,262.48-12,252.65

Finding the Fourth Proportional to 21,203.96, 29,262.48 and 12,252.65

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Solution

The fourth proportional to 21,203.96, 29,262.48 and 12,252.65 is: 16,909.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,203.96 : 29,262.48 = 12,252.65 : x
  2. Step 2: Convert to fraction form
    21,203.96/29,262.48 = 12,252.65/x
  3. Step 3: Cross multiply
    21,203.96x = 29,262.48 × 12,252.65
  4. Step 4: Simplify right side
    21,203.96x = 358,542,925.57
  5. Step 5: Solve for x
    x = 358,542,925.57/21,203.96
  6. Step 6: Final answer
    x = 16,909.24

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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.