Home / 28,347.33-39,119.34-15,772.08

Finding the Fourth Proportional to 28,347.33, 39,119.34 and 15,772.08

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Solution

The fourth proportional to 28,347.33, 39,119.34 and 15,772.08 is: 21,765.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347.33 : 39,119.34 = 15,772.08 : x
  2. Step 2: Convert to fraction form
    28,347.33/39,119.34 = 15,772.08/x
  3. Step 3: Cross multiply
    28,347.33x = 39,119.34 × 15,772.08
  4. Step 4: Simplify right side
    28,347.33x = 616,993,360.03
  5. Step 5: Solve for x
    x = 616,993,360.03/28,347.33
  6. Step 6: Final answer
    x = 21,765.48

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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.