Home / 21,179.26-29,232.70-14,384.79

Finding the Fourth Proportional to 21,179.26, 29,232.70 and 14,384.79

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Solution

The fourth proportional to 21,179.26, 29,232.70 and 14,384.79 is: 19,854.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,179.26 : 29,232.70 = 14,384.79 : x
  2. Step 2: Convert to fraction form
    21,179.26/29,232.70 = 14,384.79/x
  3. Step 3: Cross multiply
    21,179.26x = 29,232.70 × 14,384.79
  4. Step 4: Simplify right side
    21,179.26x = 420,506,250.63
  5. Step 5: Solve for x
    x = 420,506,250.63/21,179.26
  6. Step 6: Final answer
    x = 19,854.62

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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.