Home / 20,303.91-28,020.47-12,344.85

Finding the Fourth Proportional to 20,303.91, 28,020.47 and 12,344.85

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Solution

The fourth proportional to 20,303.91, 28,020.47 and 12,344.85 is: 17,036.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,303.91 : 28,020.47 = 12,344.85 : x
  2. Step 2: Convert to fraction form
    20,303.91/28,020.47 = 12,344.85/x
  3. Step 3: Cross multiply
    20,303.91x = 28,020.47 × 12,344.85
  4. Step 4: Simplify right side
    20,303.91x = 345,908,437.36
  5. Step 5: Solve for x
    x = 345,908,437.36/20,303.91
  6. Step 6: Final answer
    x = 17,036.54

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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.