Home / 21,863.58-30,155.75-14,297.77

Finding the Fourth Proportional to 21,863.58, 30,155.75 and 14,297.77

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Solution

The fourth proportional to 21,863.58, 30,155.75 and 14,297.77 is: 19,720.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,863.58 : 30,155.75 = 14,297.77 : x
  2. Step 2: Convert to fraction form
    21,863.58/30,155.75 = 14,297.77/x
  3. Step 3: Cross multiply
    21,863.58x = 30,155.75 × 14,297.77
  4. Step 4: Simplify right side
    21,863.58x = 431,159,977.68
  5. Step 5: Solve for x
    x = 431,159,977.68/21,863.58
  6. Step 6: Final answer
    x = 19,720.47

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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.