Home / 19,718.94-27,179.67-13,978.29

Finding the Fourth Proportional to 19,718.94, 27,179.67 and 13,978.29

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Solution

The fourth proportional to 19,718.94, 27,179.67 and 13,978.29 is: 19,267.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,718.94 : 27,179.67 = 13,978.29 : x
  2. Step 2: Convert to fraction form
    19,718.94/27,179.67 = 13,978.29/x
  3. Step 3: Cross multiply
    19,718.94x = 27,179.67 × 13,978.29
  4. Step 4: Simplify right side
    19,718.94x = 379,925,309.36
  5. Step 5: Solve for x
    x = 379,925,309.36/19,718.94
  6. Step 6: Final answer
    x = 19,267.02

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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.