Home / 20,036.32-27,658.20-12,085.36

Finding the Fourth Proportional to 20,036.32, 27,658.20 and 12,085.36

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Solution

The fourth proportional to 20,036.32, 27,658.20 and 12,085.36 is: 16,682.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,036.32 : 27,658.20 = 12,085.36 : x
  2. Step 2: Convert to fraction form
    20,036.32/27,658.20 = 12,085.36/x
  3. Step 3: Cross multiply
    20,036.32x = 27,658.20 × 12,085.36
  4. Step 4: Simplify right side
    20,036.32x = 334,259,303.95
  5. Step 5: Solve for x
    x = 334,259,303.95/20,036.32
  6. Step 6: Final answer
    x = 16,682.67

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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.