Home / 20,471.10-28,241.37-14,809.20

Finding the Fourth Proportional to 20,471.10, 28,241.37 and 14,809.20

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Solution

The fourth proportional to 20,471.10, 28,241.37 and 14,809.20 is: 20,430.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,471.10 : 28,241.37 = 14,809.20 : x
  2. Step 2: Convert to fraction form
    20,471.10/28,241.37 = 14,809.20/x
  3. Step 3: Cross multiply
    20,471.10x = 28,241.37 × 14,809.20
  4. Step 4: Simplify right side
    20,471.10x = 418,232,096.60
  5. Step 5: Solve for x
    x = 418,232,096.60/20,471.10
  6. Step 6: Final answer
    x = 20,430.37

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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.