Home / 21,202.90-31,803.33-8,054.25

Finding the Fourth Proportional to 21,202.90, 31,803.33 and 8,054.25

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Solution

The fourth proportional to 21,202.90, 31,803.33 and 8,054.25 is: 12,080.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,202.90 : 31,803.33 = 8,054.25 : x
  2. Step 2: Convert to fraction form
    21,202.90/31,803.33 = 8,054.25/x
  3. Step 3: Cross multiply
    21,202.90x = 31,803.33 × 8,054.25
  4. Step 4: Simplify right side
    21,202.90x = 256,151,970.65
  5. Step 5: Solve for x
    x = 256,151,970.65/21,202.90
  6. Step 6: Final answer
    x = 12,080.99

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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.