Home / 25,138.77-37,857.31-21,891.07

Finding the Fourth Proportional to 25,138.77, 37,857.31 and 21,891.07

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Solution

The fourth proportional to 25,138.77, 37,857.31 and 21,891.07 is: 32,966.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,138.77 : 37,857.31 = 21,891.07 : x
  2. Step 2: Convert to fraction form
    25,138.77/37,857.31 = 21,891.07/x
  3. Step 3: Cross multiply
    25,138.77x = 37,857.31 × 21,891.07
  4. Step 4: Simplify right side
    25,138.77x = 828,737,023.22
  5. Step 5: Solve for x
    x = 828,737,023.22/25,138.77
  6. Step 6: Final answer
    x = 32,966.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.