Home / 20,559.14-28,366.70-14,183.70

Finding the Fourth Proportional to 20,559.14, 28,366.70 and 14,183.70

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Solution

The fourth proportional to 20,559.14, 28,366.70 and 14,183.70 is: 19,570.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.14 : 28,366.70 = 14,183.70 : x
  2. Step 2: Convert to fraction form
    20,559.14/28,366.70 = 14,183.70/x
  3. Step 3: Cross multiply
    20,559.14x = 28,366.70 × 14,183.70
  4. Step 4: Simplify right side
    20,559.14x = 402,344,762.79
  5. Step 5: Solve for x
    x = 402,344,762.79/20,559.14
  6. Step 6: Final answer
    x = 19,570.12

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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.