Home / 21,336.60-32,029.20-12,576.45

Finding the Fourth Proportional to 21,336.60, 32,029.20 and 12,576.45

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Solution

The fourth proportional to 21,336.60, 32,029.20 and 12,576.45 is: 18,879.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,336.60 : 32,029.20 = 12,576.45 : x
  2. Step 2: Convert to fraction form
    21,336.60/32,029.20 = 12,576.45/x
  3. Step 3: Cross multiply
    21,336.60x = 32,029.20 × 12,576.45
  4. Step 4: Simplify right side
    21,336.60x = 402,813,632.34
  5. Step 5: Solve for x
    x = 402,813,632.34/21,336.60
  6. Step 6: Final answer
    x = 18,879.00

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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.