Home / 18,669.02-28,007.62-13,723.66

Finding the Fourth Proportional to 18,669.02, 28,007.62 and 13,723.66

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Solution

The fourth proportional to 18,669.02, 28,007.62 and 13,723.66 is: 20,588.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,669.02 : 28,007.62 = 13,723.66 : x
  2. Step 2: Convert to fraction form
    18,669.02/28,007.62 = 13,723.66/x
  3. Step 3: Cross multiply
    18,669.02x = 28,007.62 × 13,723.66
  4. Step 4: Simplify right side
    18,669.02x = 384,367,054.29
  5. Step 5: Solve for x
    x = 384,367,054.29/18,669.02
  6. Step 6: Final answer
    x = 20,588.50

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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.