Home / 27,875.36-41,811.48-20,386.60

Finding the Fourth Proportional to 27,875.36, 41,811.48 and 20,386.60

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Solution

The fourth proportional to 27,875.36, 41,811.48 and 20,386.60 is: 30,578.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,875.36 : 41,811.48 = 20,386.60 : x
  2. Step 2: Convert to fraction form
    27,875.36/41,811.48 = 20,386.60/x
  3. Step 3: Cross multiply
    27,875.36x = 41,811.48 × 20,386.60
  4. Step 4: Simplify right side
    27,875.36x = 852,393,918.17
  5. Step 5: Solve for x
    x = 852,393,918.17/27,875.36
  6. Step 6: Final answer
    x = 30,578.76

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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.