Home / 20,703.86-30,896.73-18,489.46

Finding the Fourth Proportional to 20,703.86, 30,896.73 and 18,489.46

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Solution

The fourth proportional to 20,703.86, 30,896.73 and 18,489.46 is: 27,592.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,703.86 : 30,896.73 = 18,489.46 : x
  2. Step 2: Convert to fraction form
    20,703.86/30,896.73 = 18,489.46/x
  3. Step 3: Cross multiply
    20,703.86x = 30,896.73 × 18,489.46
  4. Step 4: Simplify right side
    20,703.86x = 571,263,853.47
  5. Step 5: Solve for x
    x = 571,263,853.47/20,703.86
  6. Step 6: Final answer
    x = 27,592.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.