Home / 20,130.18-30,224.43-14,589.78

Finding the Fourth Proportional to 20,130.18, 30,224.43 and 14,589.78

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Solution

The fourth proportional to 20,130.18, 30,224.43 and 14,589.78 is: 21,905.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130.18 : 30,224.43 = 14,589.78 : x
  2. Step 2: Convert to fraction form
    20,130.18/30,224.43 = 14,589.78/x
  3. Step 3: Cross multiply
    20,130.18x = 30,224.43 × 14,589.78
  4. Step 4: Simplify right side
    20,130.18x = 440,967,784.33
  5. Step 5: Solve for x
    x = 440,967,784.33/20,130.18
  6. Step 6: Final answer
    x = 21,905.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.