Home / 22,739.76-31,380.84-12,668.13

Finding the Fourth Proportional to 22,739.76, 31,380.84 and 12,668.13

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Solution

The fourth proportional to 22,739.76, 31,380.84 and 12,668.13 is: 17,482.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,739.76 : 31,380.84 = 12,668.13 : x
  2. Step 2: Convert to fraction form
    22,739.76/31,380.84 = 12,668.13/x
  3. Step 3: Cross multiply
    22,739.76x = 31,380.84 × 12,668.13
  4. Step 4: Simplify right side
    22,739.76x = 397,536,560.63
  5. Step 5: Solve for x
    x = 397,536,560.63/22,739.76
  6. Step 6: Final answer
    x = 17,482.00

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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.