Home / 20,586.11-28,409.05-12,088.33

Finding the Fourth Proportional to 20,586.11, 28,409.05 and 12,088.33

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Solution

The fourth proportional to 20,586.11, 28,409.05 and 12,088.33 is: 16,682.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,586.11 : 28,409.05 = 12,088.33 : x
  2. Step 2: Convert to fraction form
    20,586.11/28,409.05 = 12,088.33/x
  3. Step 3: Cross multiply
    20,586.11x = 28,409.05 × 12,088.33
  4. Step 4: Simplify right side
    20,586.11x = 343,417,995.37
  5. Step 5: Solve for x
    x = 343,417,995.37/20,586.11
  6. Step 6: Final answer
    x = 16,682.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.