Home / 21,403.56-32,106.66-8,255.76

Finding the Fourth Proportional to 21,403.56, 32,106.66 and 8,255.76

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Solution

The fourth proportional to 21,403.56, 32,106.66 and 8,255.76 is: 12,384.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,403.56 : 32,106.66 = 8,255.76 : x
  2. Step 2: Convert to fraction form
    21,403.56/32,106.66 = 8,255.76/x
  3. Step 3: Cross multiply
    21,403.56x = 32,106.66 × 8,255.76
  4. Step 4: Simplify right side
    21,403.56x = 265,064,879.36
  5. Step 5: Solve for x
    x = 265,064,879.36/21,403.56
  6. Step 6: Final answer
    x = 12,384.15

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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.