Home / 28,361.36-42,532.12-8,365.55

Finding the Fourth Proportional to 28,361.36, 42,532.12 and 8,365.55

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Solution

The fourth proportional to 28,361.36, 42,532.12 and 8,365.55 is: 12,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,361.36 : 42,532.12 = 8,365.55 : x
  2. Step 2: Convert to fraction form
    28,361.36/42,532.12 = 8,365.55/x
  3. Step 3: Cross multiply
    28,361.36x = 42,532.12 × 8,365.55
  4. Step 4: Simplify right side
    28,361.36x = 355,804,576.47
  5. Step 5: Solve for x
    x = 355,804,576.47/28,361.36
  6. Step 6: Final answer
    x = 12,545.40

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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.