Home / 21,803.04-30,083.58-12,847.32

Finding the Fourth Proportional to 21,803.04, 30,083.58 and 12,847.32

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Solution

The fourth proportional to 21,803.04, 30,083.58 and 12,847.32 is: 17,726.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,803.04 : 30,083.58 = 12,847.32 : x
  2. Step 2: Convert to fraction form
    21,803.04/30,083.58 = 12,847.32/x
  3. Step 3: Cross multiply
    21,803.04x = 30,083.58 × 12,847.32
  4. Step 4: Simplify right side
    21,803.04x = 386,493,379.01
  5. Step 5: Solve for x
    x = 386,493,379.01/21,803.04
  6. Step 6: Final answer
    x = 17,726.58

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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.