Home / 27,015.77-37,278.09-15,683.47

Finding the Fourth Proportional to 27,015.77, 37,278.09 and 15,683.47

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Solution

The fourth proportional to 27,015.77, 37,278.09 and 15,683.47 is: 21,641.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,015.77 : 37,278.09 = 15,683.47 : x
  2. Step 2: Convert to fraction form
    27,015.77/37,278.09 = 15,683.47/x
  3. Step 3: Cross multiply
    27,015.77x = 37,278.09 × 15,683.47
  4. Step 4: Simplify right side
    27,015.77x = 584,649,806.17
  5. Step 5: Solve for x
    x = 584,649,806.17/27,015.77
  6. Step 6: Final answer
    x = 21,641.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.