Home / 28,857.72-43,302.78-13,276.56

Finding the Fourth Proportional to 28,857.72, 43,302.78 and 13,276.56

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Solution

The fourth proportional to 28,857.72, 43,302.78 and 13,276.56 is: 19,922.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,857.72 : 43,302.78 = 13,276.56 : x
  2. Step 2: Convert to fraction form
    28,857.72/43,302.78 = 13,276.56/x
  3. Step 3: Cross multiply
    28,857.72x = 43,302.78 × 13,276.56
  4. Step 4: Simplify right side
    28,857.72x = 574,911,956.84
  5. Step 5: Solve for x
    x = 574,911,956.84/28,857.72
  6. Step 6: Final answer
    x = 19,922.29

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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.