Home / 25,360.48-35,022.54-20,899

Finding the Fourth Proportional to 25,360.48, 35,022.54 and 20,899

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Solution

The fourth proportional to 25,360.48, 35,022.54 and 20,899 is: 28,861.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,360.48 : 35,022.54 = 20,899 : x
  2. Step 2: Convert to fraction form
    25,360.48/35,022.54 = 20,899/x
  3. Step 3: Cross multiply
    25,360.48x = 35,022.54 × 20,899
  4. Step 4: Simplify right side
    25,360.48x = 731,936,063.46
  5. Step 5: Solve for x
    x = 731,936,063.46/25,360.48
  6. Step 6: Final answer
    x = 28,861.29

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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.