Home / 21,219.44-29,271.76-14,411.04

Finding the Fourth Proportional to 21,219.44, 29,271.76 and 14,411.04

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Solution

The fourth proportional to 21,219.44, 29,271.76 and 14,411.04 is: 19,879.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,219.44 : 29,271.76 = 14,411.04 : x
  2. Step 2: Convert to fraction form
    21,219.44/29,271.76 = 14,411.04/x
  3. Step 3: Cross multiply
    21,219.44x = 29,271.76 × 14,411.04
  4. Step 4: Simplify right side
    21,219.44x = 421,836,504.23
  5. Step 5: Solve for x
    x = 421,836,504.23/21,219.44
  6. Step 6: Final answer
    x = 19,879.72

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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.