Home / 20,381.63-30,576.83-6,341.36

Finding the Fourth Proportional to 20,381.63, 30,576.83 and 6,341.36

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Solution

The fourth proportional to 20,381.63, 30,576.83 and 6,341.36 is: 9,513.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,381.63 : 30,576.83 = 6,341.36 : x
  2. Step 2: Convert to fraction form
    20,381.63/30,576.83 = 6,341.36/x
  3. Step 3: Cross multiply
    20,381.63x = 30,576.83 × 6,341.36
  4. Step 4: Simplify right side
    20,381.63x = 193,898,502.10
  5. Step 5: Solve for x
    x = 193,898,502.10/20,381.63
  6. Step 6: Final answer
    x = 9,513.40

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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.