Home / 28,935.36-43,387.60-13,721.92

Finding the Fourth Proportional to 28,935.36, 43,387.60 and 13,721.92

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Solution

The fourth proportional to 28,935.36, 43,387.60 and 13,721.92 is: 20,575.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,935.36 : 43,387.60 = 13,721.92 : x
  2. Step 2: Convert to fraction form
    28,935.36/43,387.60 = 13,721.92/x
  3. Step 3: Cross multiply
    28,935.36x = 43,387.60 × 13,721.92
  4. Step 4: Simplify right side
    28,935.36x = 595,361,176.19
  5. Step 5: Solve for x
    x = 595,361,176.19/28,935.36
  6. Step 6: Final answer
    x = 20,575.56

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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.