Home / 28,297.94-42,455.78-11,665.80

Finding the Fourth Proportional to 28,297.94, 42,455.78 and 11,665.80

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Solution

The fourth proportional to 28,297.94, 42,455.78 and 11,665.80 is: 17,502.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,297.94 : 42,455.78 = 11,665.80 : x
  2. Step 2: Convert to fraction form
    28,297.94/42,455.78 = 11,665.80/x
  3. Step 3: Cross multiply
    28,297.94x = 42,455.78 × 11,665.80
  4. Step 4: Simplify right side
    28,297.94x = 495,280,580.00
  5. Step 5: Solve for x
    x = 495,280,580.00/28,297.94
  6. Step 6: Final answer
    x = 17,502.36

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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.