Home / 28,684.23-39,562.34-20,752.71

Finding the Fourth Proportional to 28,684.23, 39,562.34 and 20,752.71

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Solution

The fourth proportional to 28,684.23, 39,562.34 and 20,752.71 is: 28,622.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,684.23 : 39,562.34 = 20,752.71 : x
  2. Step 2: Convert to fraction form
    28,684.23/39,562.34 = 20,752.71/x
  3. Step 3: Cross multiply
    28,684.23x = 39,562.34 × 20,752.71
  4. Step 4: Simplify right side
    28,684.23x = 821,025,665.18
  5. Step 5: Solve for x
    x = 821,025,665.18/28,684.23
  6. Step 6: Final answer
    x = 28,622.89

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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.