Home / 20,376.10-30,556.68-7,045.72

Finding the Fourth Proportional to 20,376.10, 30,556.68 and 7,045.72

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Solution

The fourth proportional to 20,376.10, 30,556.68 and 7,045.72 is: 10,566.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,376.10 : 30,556.68 = 7,045.72 : x
  2. Step 2: Convert to fraction form
    20,376.10/30,556.68 = 7,045.72/x
  3. Step 3: Cross multiply
    20,376.10x = 30,556.68 × 7,045.72
  4. Step 4: Simplify right side
    20,376.10x = 215,293,811.41
  5. Step 5: Solve for x
    x = 215,293,811.41/20,376.10
  6. Step 6: Final answer
    x = 10,566.00

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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.