Home / 28,556.30-39,402.22-18,483.34

Finding the Fourth Proportional to 28,556.30, 39,402.22 and 18,483.34

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Solution

The fourth proportional to 28,556.30, 39,402.22 and 18,483.34 is: 25,503.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,556.30 : 39,402.22 = 18,483.34 : x
  2. Step 2: Convert to fraction form
    28,556.30/39,402.22 = 18,483.34/x
  3. Step 3: Cross multiply
    28,556.30x = 39,402.22 × 18,483.34
  4. Step 4: Simplify right side
    28,556.30x = 728,284,592.84
  5. Step 5: Solve for x
    x = 728,284,592.84/28,556.30
  6. Step 6: Final answer
    x = 25,503.47

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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.