Home / 19,431.51-26,788.32-16,435.32

Finding the Fourth Proportional to 19,431.51, 26,788.32 and 16,435.32

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Solution

The fourth proportional to 19,431.51, 26,788.32 and 16,435.32 is: 22,657.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.51 : 26,788.32 = 16,435.32 : x
  2. Step 2: Convert to fraction form
    19,431.51/26,788.32 = 16,435.32/x
  3. Step 3: Cross multiply
    19,431.51x = 26,788.32 × 16,435.32
  4. Step 4: Simplify right side
    19,431.51x = 440,274,611.46
  5. Step 5: Solve for x
    x = 440,274,611.46/19,431.51
  6. Step 6: Final answer
    x = 22,657.77

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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.