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Finding the Fourth Proportional to 36,631.51, 54,947.40 and 8,929.51

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Solution

The fourth proportional to 36,631.51, 54,947.40 and 8,929.51 is: 13,394.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,631.51 : 54,947.40 = 8,929.51 : x
  2. Step 2: Convert to fraction form
    36,631.51/54,947.40 = 8,929.51/x
  3. Step 3: Cross multiply
    36,631.51x = 54,947.40 × 8,929.51
  4. Step 4: Simplify right side
    36,631.51x = 490,653,357.77
  5. Step 5: Solve for x
    x = 490,653,357.77/36,631.51
  6. Step 6: Final answer
    x = 13,394.30

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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.