Home / 22,410.54-30,919.32-12,977.28

Finding the Fourth Proportional to 22,410.54, 30,919.32 and 12,977.28

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Solution

The fourth proportional to 22,410.54, 30,919.32 and 12,977.28 is: 17,904.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,410.54 : 30,919.32 = 12,977.28 : x
  2. Step 2: Convert to fraction form
    22,410.54/30,919.32 = 12,977.28/x
  3. Step 3: Cross multiply
    22,410.54x = 30,919.32 × 12,977.28
  4. Step 4: Simplify right side
    22,410.54x = 401,248,673.05
  5. Step 5: Solve for x
    x = 401,248,673.05/22,410.54
  6. Step 6: Final answer
    x = 17,904.46

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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.