Home / 20,575.84-30,876.36-8,888.80

Finding the Fourth Proportional to 20,575.84, 30,876.36 and 8,888.80

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Solution

The fourth proportional to 20,575.84, 30,876.36 and 8,888.80 is: 13,338.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,575.84 : 30,876.36 = 8,888.80 : x
  2. Step 2: Convert to fraction form
    20,575.84/30,876.36 = 8,888.80/x
  3. Step 3: Cross multiply
    20,575.84x = 30,876.36 × 8,888.80
  4. Step 4: Simplify right side
    20,575.84x = 274,453,788.77
  5. Step 5: Solve for x
    x = 274,453,788.77/20,575.84
  6. Step 6: Final answer
    x = 13,338.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.