Home / 20,846.70-28,766.62-12,347.32

Finding the Fourth Proportional to 20,846.70, 28,766.62 and 12,347.32

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Solution

The fourth proportional to 20,846.70, 28,766.62 and 12,347.32 is: 17,038.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,846.70 : 28,766.62 = 12,347.32 : x
  2. Step 2: Convert to fraction form
    20,846.70/28,766.62 = 12,347.32/x
  3. Step 3: Cross multiply
    20,846.70x = 28,766.62 × 12,347.32
  4. Step 4: Simplify right side
    20,846.70x = 355,190,662.46
  5. Step 5: Solve for x
    x = 355,190,662.46/20,846.70
  6. Step 6: Final answer
    x = 17,038.22

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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.