Home / 20,559.29-30,690.16-18,068.22

Finding the Fourth Proportional to 20,559.29, 30,690.16 and 18,068.22

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Solution

The fourth proportional to 20,559.29, 30,690.16 and 18,068.22 is: 26,971.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.29 : 30,690.16 = 18,068.22 : x
  2. Step 2: Convert to fraction form
    20,559.29/30,690.16 = 18,068.22/x
  3. Step 3: Cross multiply
    20,559.29x = 30,690.16 × 18,068.22
  4. Step 4: Simplify right side
    20,559.29x = 554,516,517.54
  5. Step 5: Solve for x
    x = 554,516,517.54/20,559.29
  6. Step 6: Final answer
    x = 26,971.59

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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.