Home / 20,585.07-28,403.46-13,032.63

Finding the Fourth Proportional to 20,585.07, 28,403.46 and 13,032.63

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Solution

The fourth proportional to 20,585.07, 28,403.46 and 13,032.63 is: 17,982.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,585.07 : 28,403.46 = 13,032.63 : x
  2. Step 2: Convert to fraction form
    20,585.07/28,403.46 = 13,032.63/x
  3. Step 3: Cross multiply
    20,585.07x = 28,403.46 × 13,032.63
  4. Step 4: Simplify right side
    20,585.07x = 370,171,784.90
  5. Step 5: Solve for x
    x = 370,171,784.90/20,585.07
  6. Step 6: Final answer
    x = 17,982.54

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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.