Home / 20,359.40-30,512.38-14,755.88

Finding the Fourth Proportional to 20,359.40, 30,512.38 and 14,755.88

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Solution

The fourth proportional to 20,359.40, 30,512.38 and 14,755.88 is: 22,114.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,359.40 : 30,512.38 = 14,755.88 : x
  2. Step 2: Convert to fraction form
    20,359.40/30,512.38 = 14,755.88/x
  3. Step 3: Cross multiply
    20,359.40x = 30,512.38 × 14,755.88
  4. Step 4: Simplify right side
    20,359.40x = 450,237,017.79
  5. Step 5: Solve for x
    x = 450,237,017.79/20,359.40
  6. Step 6: Final answer
    x = 22,114.45

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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.