Home / 22,087.36-30,479.60-12,656.80

Finding the Fourth Proportional to 22,087.36, 30,479.60 and 12,656.80

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Solution

The fourth proportional to 22,087.36, 30,479.60 and 12,656.80 is: 17,465.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,087.36 : 30,479.60 = 12,656.80 : x
  2. Step 2: Convert to fraction form
    22,087.36/30,479.60 = 12,656.80/x
  3. Step 3: Cross multiply
    22,087.36x = 30,479.60 × 12,656.80
  4. Step 4: Simplify right side
    22,087.36x = 385,774,201.28
  5. Step 5: Solve for x
    x = 385,774,201.28/22,087.36
  6. Step 6: Final answer
    x = 17,465.84

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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.