Home / 21,436.19-32,145.26-8,106.94

Finding the Fourth Proportional to 21,436.19, 32,145.26 and 8,106.94

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Solution

The fourth proportional to 21,436.19, 32,145.26 and 8,106.94 is: 12,156.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,436.19 : 32,145.26 = 8,106.94 : x
  2. Step 2: Convert to fraction form
    21,436.19/32,145.26 = 8,106.94/x
  3. Step 3: Cross multiply
    21,436.19x = 32,145.26 × 8,106.94
  4. Step 4: Simplify right side
    21,436.19x = 260,599,512.93
  5. Step 5: Solve for x
    x = 260,599,512.93/21,436.19
  6. Step 6: Final answer
    x = 12,156.99

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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.