Home / 30,682.10-42,345.62-25,638.33

Finding the Fourth Proportional to 30,682.10, 42,345.62 and 25,638.33

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Solution

The fourth proportional to 30,682.10, 42,345.62 and 25,638.33 is: 35,384.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,682.10 : 42,345.62 = 25,638.33 : x
  2. Step 2: Convert to fraction form
    30,682.10/42,345.62 = 25,638.33/x
  3. Step 3: Cross multiply
    30,682.10x = 42,345.62 × 25,638.33
  4. Step 4: Simplify right side
    30,682.10x = 1,085,670,979.61
  5. Step 5: Solve for x
    x = 1,085,670,979.61/30,682.10
  6. Step 6: Final answer
    x = 35,384.51

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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.