Home / 18,700.27-28,055.26-15,374.00

Finding the Fourth Proportional to 18,700.27, 28,055.26 and 15,374.00

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Solution

The fourth proportional to 18,700.27, 28,055.26 and 15,374.00 is: 23,065.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,700.27 : 28,055.26 = 15,374.00 : x
  2. Step 2: Convert to fraction form
    18,700.27/28,055.26 = 15,374.00/x
  3. Step 3: Cross multiply
    18,700.27x = 28,055.26 × 15,374.00
  4. Step 4: Simplify right side
    18,700.27x = 431,321,656.60
  5. Step 5: Solve for x
    x = 431,321,656.60/18,700.27
  6. Step 6: Final answer
    x = 23,065.00

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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.