Home / 28,851.36-43,278.64-14,072.88

Finding the Fourth Proportional to 28,851.36, 43,278.64 and 14,072.88

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Solution

The fourth proportional to 28,851.36, 43,278.64 and 14,072.88 is: 21,110.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,851.36 : 43,278.64 = 14,072.88 : x
  2. Step 2: Convert to fraction form
    28,851.36/43,278.64 = 14,072.88/x
  3. Step 3: Cross multiply
    28,851.36x = 43,278.64 × 14,072.88
  4. Step 4: Simplify right side
    28,851.36x = 609,055,107.28
  5. Step 5: Solve for x
    x = 609,055,107.28/28,851.36
  6. Step 6: Final answer
    x = 21,110.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.