Home / 28,756.80-43,109.55-11,222.55

Finding the Fourth Proportional to 28,756.80, 43,109.55 and 11,222.55

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Solution

The fourth proportional to 28,756.80, 43,109.55 and 11,222.55 is: 16,823.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.80 : 43,109.55 = 11,222.55 : x
  2. Step 2: Convert to fraction form
    28,756.80/43,109.55 = 11,222.55/x
  3. Step 3: Cross multiply
    28,756.80x = 43,109.55 × 11,222.55
  4. Step 4: Simplify right side
    28,756.80x = 483,799,080.35
  5. Step 5: Solve for x
    x = 483,799,080.35/28,756.80
  6. Step 6: Final answer
    x = 16,823.81

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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.