Home / 21,269.58-31,886.93-8,798.55

Finding the Fourth Proportional to 21,269.58, 31,886.93 and 8,798.55

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Solution

The fourth proportional to 21,269.58, 31,886.93 and 8,798.55 is: 13,190.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.58 : 31,886.93 = 8,798.55 : x
  2. Step 2: Convert to fraction form
    21,269.58/31,886.93 = 8,798.55/x
  3. Step 3: Cross multiply
    21,269.58x = 31,886.93 × 8,798.55
  4. Step 4: Simplify right side
    21,269.58x = 280,558,650.37
  5. Step 5: Solve for x
    x = 280,558,650.37/21,269.58
  6. Step 6: Final answer
    x = 13,190.61

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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.