Home / 28,865.40-43,265.70-12,222.60

Finding the Fourth Proportional to 28,865.40, 43,265.70 and 12,222.60

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Solution

The fourth proportional to 28,865.40, 43,265.70 and 12,222.60 is: 18,320.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,865.40 : 43,265.70 = 12,222.60 : x
  2. Step 2: Convert to fraction form
    28,865.40/43,265.70 = 12,222.60/x
  3. Step 3: Cross multiply
    28,865.40x = 43,265.70 × 12,222.60
  4. Step 4: Simplify right side
    28,865.40x = 528,819,344.82
  5. Step 5: Solve for x
    x = 528,819,344.82/28,865.40
  6. Step 6: Final answer
    x = 18,320.18

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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.