Home / 28,914.72-39,935.16-19,466.88

Finding the Fourth Proportional to 28,914.72, 39,935.16 and 19,466.88

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Solution

The fourth proportional to 28,914.72, 39,935.16 and 19,466.88 is: 26,886.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,914.72 : 39,935.16 = 19,466.88 : x
  2. Step 2: Convert to fraction form
    28,914.72/39,935.16 = 19,466.88/x
  3. Step 3: Cross multiply
    28,914.72x = 39,935.16 × 19,466.88
  4. Step 4: Simplify right side
    28,914.72x = 777,412,967.50
  5. Step 5: Solve for x
    x = 777,412,967.50/28,914.72
  6. Step 6: Final answer
    x = 26,886.41

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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.