Home / 20,339.91-30,425.63-19,095.75

Finding the Fourth Proportional to 20,339.91, 30,425.63 and 19,095.75

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Solution

The fourth proportional to 20,339.91, 30,425.63 and 19,095.75 is: 28,564.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,339.91 : 30,425.63 = 19,095.75 : x
  2. Step 2: Convert to fraction form
    20,339.91/30,425.63 = 19,095.75/x
  3. Step 3: Cross multiply
    20,339.91x = 30,425.63 × 19,095.75
  4. Step 4: Simplify right side
    20,339.91x = 581,000,128.59
  5. Step 5: Solve for x
    x = 581,000,128.59/20,339.91
  6. Step 6: Final answer
    x = 28,564.54

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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.