Home / 21,357.94-29,473.84-11,798.49

Finding the Fourth Proportional to 21,357.94, 29,473.84 and 11,798.49

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Solution

The fourth proportional to 21,357.94, 29,473.84 and 11,798.49 is: 16,281.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,357.94 : 29,473.84 = 11,798.49 : x
  2. Step 2: Convert to fraction form
    21,357.94/29,473.84 = 11,798.49/x
  3. Step 3: Cross multiply
    21,357.94x = 29,473.84 × 11,798.49
  4. Step 4: Simplify right side
    21,357.94x = 347,746,659.13
  5. Step 5: Solve for x
    x = 347,746,659.13/21,357.94
  6. Step 6: Final answer
    x = 16,281.84

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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.