Home / 21,054.90-31,580.52-8,576.25

Finding the Fourth Proportional to 21,054.90, 31,580.52 and 8,576.25

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Solution

The fourth proportional to 21,054.90, 31,580.52 and 8,576.25 is: 12,863.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.90 : 31,580.52 = 8,576.25 : x
  2. Step 2: Convert to fraction form
    21,054.90/31,580.52 = 8,576.25/x
  3. Step 3: Cross multiply
    21,054.90x = 31,580.52 × 8,576.25
  4. Step 4: Simplify right side
    21,054.90x = 270,842,434.65
  5. Step 5: Solve for x
    x = 270,842,434.65/21,054.90
  6. Step 6: Final answer
    x = 12,863.63

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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.