Home / 15,556.80-23,335.19-3,870.02

Finding the Fourth Proportional to 15,556.80, 23,335.19 and 3,870.02

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Solution

The fourth proportional to 15,556.80, 23,335.19 and 3,870.02 is: 5,805.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,556.80 : 23,335.19 = 3,870.02 : x
  2. Step 2: Convert to fraction form
    15,556.80/23,335.19 = 3,870.02/x
  3. Step 3: Cross multiply
    15,556.80x = 23,335.19 × 3,870.02
  4. Step 4: Simplify right side
    15,556.80x = 90,307,652.00
  5. Step 5: Solve for x
    x = 90,307,652.00/15,556.80
  6. Step 6: Final answer
    x = 5,805.03

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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.