Home / 28,771.53-43,162.74-11,240.25

Finding the Fourth Proportional to 28,771.53, 43,162.74 and 11,240.25

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Solution

The fourth proportional to 28,771.53, 43,162.74 and 11,240.25 is: 16,862.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,771.53 : 43,162.74 = 11,240.25 : x
  2. Step 2: Convert to fraction form
    28,771.53/43,162.74 = 11,240.25/x
  3. Step 3: Cross multiply
    28,771.53x = 43,162.74 × 11,240.25
  4. Step 4: Simplify right side
    28,771.53x = 485,159,988.29
  5. Step 5: Solve for x
    x = 485,159,988.29/28,771.53
  6. Step 6: Final answer
    x = 16,862.50

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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.