Home / 44,343.20-66,514.80-21,015.20

Finding the Fourth Proportional to 44,343.20, 66,514.80 and 21,015.20

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Solution

The fourth proportional to 44,343.20, 66,514.80 and 21,015.20 is: 31,522.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,343.20 : 66,514.80 = 21,015.20 : x
  2. Step 2: Convert to fraction form
    44,343.20/66,514.80 = 21,015.20/x
  3. Step 3: Cross multiply
    44,343.20x = 66,514.80 × 21,015.20
  4. Step 4: Simplify right side
    44,343.20x = 1,397,821,824.96
  5. Step 5: Solve for x
    x = 1,397,821,824.96/44,343.20
  6. Step 6: Final answer
    x = 31,522.80

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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.