Home / 28,242.81-42,391.62-15,104.48

Finding the Fourth Proportional to 28,242.81, 42,391.62 and 15,104.48

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Solution

The fourth proportional to 28,242.81, 42,391.62 and 15,104.48 is: 22,671.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242.81 : 42,391.62 = 15,104.48 : x
  2. Step 2: Convert to fraction form
    28,242.81/42,391.62 = 15,104.48/x
  3. Step 3: Cross multiply
    28,242.81x = 42,391.62 × 15,104.48
  4. Step 4: Simplify right side
    28,242.81x = 640,303,164.50
  5. Step 5: Solve for x
    x = 640,303,164.50/28,242.81
  6. Step 6: Final answer
    x = 22,671.37

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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.