Home / 18,447.12-25,279.80-16,675.76

Finding the Fourth Proportional to 18,447.12, 25,279.80 and 16,675.76

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Solution

The fourth proportional to 18,447.12, 25,279.80 and 16,675.76 is: 22,852.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.12 : 25,279.80 = 16,675.76 : x
  2. Step 2: Convert to fraction form
    18,447.12/25,279.80 = 16,675.76/x
  3. Step 3: Cross multiply
    18,447.12x = 25,279.80 × 16,675.76
  4. Step 4: Simplify right side
    18,447.12x = 421,559,877.65
  5. Step 5: Solve for x
    x = 421,559,877.65/18,447.12
  6. Step 6: Final answer
    x = 22,852.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.