Home / 20,559.29-30,690.23-18,068.27

Finding the Fourth Proportional to 20,559.29, 30,690.23 and 18,068.27

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Solution

The fourth proportional to 20,559.29, 30,690.23 and 18,068.27 is: 26,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.29 : 30,690.23 = 18,068.27 : x
  2. Step 2: Convert to fraction form
    20,559.29/30,690.23 = 18,068.27/x
  3. Step 3: Cross multiply
    20,559.29x = 30,690.23 × 18,068.27
  4. Step 4: Simplify right side
    20,559.29x = 554,519,118.21
  5. Step 5: Solve for x
    x = 554,519,118.21/20,559.29
  6. Step 6: Final answer
    x = 26,971.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.