Home / 25,556.29-38,283.40-20,300.20

Finding the Fourth Proportional to 25,556.29, 38,283.40 and 20,300.20

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Solution

The fourth proportional to 25,556.29, 38,283.40 and 20,300.20 is: 30,409.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,556.29 : 38,283.40 = 20,300.20 : x
  2. Step 2: Convert to fraction form
    25,556.29/38,283.40 = 20,300.20/x
  3. Step 3: Cross multiply
    25,556.29x = 38,283.40 × 20,300.20
  4. Step 4: Simplify right side
    25,556.29x = 777,160,676.68
  5. Step 5: Solve for x
    x = 777,160,676.68/25,556.29
  6. Step 6: Final answer
    x = 30,409.76

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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.