Home / 28,935.83-39,924.90-18,319.37

Finding the Fourth Proportional to 28,935.83, 39,924.90 and 18,319.37

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Solution

The fourth proportional to 28,935.83, 39,924.90 and 18,319.37 is: 25,276.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,935.83 : 39,924.90 = 18,319.37 : x
  2. Step 2: Convert to fraction form
    28,935.83/39,924.90 = 18,319.37/x
  3. Step 3: Cross multiply
    28,935.83x = 39,924.90 × 18,319.37
  4. Step 4: Simplify right side
    28,935.83x = 731,398,815.69
  5. Step 5: Solve for x
    x = 731,398,815.69/28,935.83
  6. Step 6: Final answer
    x = 25,276.58

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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.