Home / 20,903.04-28,846-11,471.36

Finding the Fourth Proportional to 20,903.04, 28,846 and 11,471.36

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Solution

The fourth proportional to 20,903.04, 28,846 and 11,471.36 is: 15,830.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903.04 : 28,846 = 11,471.36 : x
  2. Step 2: Convert to fraction form
    20,903.04/28,846 = 11,471.36/x
  3. Step 3: Cross multiply
    20,903.04x = 28,846 × 11,471.36
  4. Step 4: Simplify right side
    20,903.04x = 330,902,850.56
  5. Step 5: Solve for x
    x = 330,902,850.56/20,903.04
  6. Step 6: Final answer
    x = 15,830.37

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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.