Home / 21,346.41-29,459.04-11,787.65

Finding the Fourth Proportional to 21,346.41, 29,459.04 and 11,787.65

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Solution

The fourth proportional to 21,346.41, 29,459.04 and 11,787.65 is: 16,267.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,346.41 : 29,459.04 = 11,787.65 : x
  2. Step 2: Convert to fraction form
    21,346.41/29,459.04 = 11,787.65/x
  3. Step 3: Cross multiply
    21,346.41x = 29,459.04 × 11,787.65
  4. Step 4: Simplify right side
    21,346.41x = 347,252,771.83
  5. Step 5: Solve for x
    x = 347,252,771.83/21,346.41
  6. Step 6: Final answer
    x = 16,267.50

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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.