Home / 25,891.08-35,721.34-15,283.32

Finding the Fourth Proportional to 25,891.08, 35,721.34 and 15,283.32

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Solution

The fourth proportional to 25,891.08, 35,721.34 and 15,283.32 is: 21,086.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,891.08 : 35,721.34 = 15,283.32 : x
  2. Step 2: Convert to fraction form
    25,891.08/35,721.34 = 15,283.32/x
  3. Step 3: Cross multiply
    25,891.08x = 35,721.34 × 15,283.32
  4. Step 4: Simplify right side
    25,891.08x = 545,940,670.05
  5. Step 5: Solve for x
    x = 545,940,670.05/25,891.08
  6. Step 6: Final answer
    x = 21,086.05

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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.