Home / 21,695.70-29,939.68-12,264.06

Finding the Fourth Proportional to 21,695.70, 29,939.68 and 12,264.06

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Solution

The fourth proportional to 21,695.70, 29,939.68 and 12,264.06 is: 16,924.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,695.70 : 29,939.68 = 12,264.06 : x
  2. Step 2: Convert to fraction form
    21,695.70/29,939.68 = 12,264.06/x
  3. Step 3: Cross multiply
    21,695.70x = 29,939.68 × 12,264.06
  4. Step 4: Simplify right side
    21,695.70x = 367,181,970.58
  5. Step 5: Solve for x
    x = 367,181,970.58/21,695.70
  6. Step 6: Final answer
    x = 16,924.18

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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.