Home / 20,315.46-30,480.48-14,759.40

Finding the Fourth Proportional to 20,315.46, 30,480.48 and 14,759.40

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Solution

The fourth proportional to 20,315.46, 30,480.48 and 14,759.40 is: 22,144.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,315.46 : 30,480.48 = 14,759.40 : x
  2. Step 2: Convert to fraction form
    20,315.46/30,480.48 = 14,759.40/x
  3. Step 3: Cross multiply
    20,315.46x = 30,480.48 × 14,759.40
  4. Step 4: Simplify right side
    20,315.46x = 449,873,596.51
  5. Step 5: Solve for x
    x = 449,873,596.51/20,315.46
  6. Step 6: Final answer
    x = 22,144.40

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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.