Home / 25,943.88-35,807.22-20,345.16

Finding the Fourth Proportional to 25,943.88, 35,807.22 and 20,345.16

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Solution

The fourth proportional to 25,943.88, 35,807.22 and 20,345.16 is: 28,079.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,943.88 : 35,807.22 = 20,345.16 : x
  2. Step 2: Convert to fraction form
    25,943.88/35,807.22 = 20,345.16/x
  3. Step 3: Cross multiply
    25,943.88x = 35,807.22 × 20,345.16
  4. Step 4: Simplify right side
    25,943.88x = 728,503,620.06
  5. Step 5: Solve for x
    x = 728,503,620.06/25,943.88
  6. Step 6: Final answer
    x = 28,079.98

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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.