Home / 34,290.56-47,336.36-20,144.28

Finding the Fourth Proportional to 34,290.56, 47,336.36 and 20,144.28

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Solution

The fourth proportional to 34,290.56, 47,336.36 and 20,144.28 is: 27,808.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,290.56 : 47,336.36 = 20,144.28 : x
  2. Step 2: Convert to fraction form
    34,290.56/47,336.36 = 20,144.28/x
  3. Step 3: Cross multiply
    34,290.56x = 47,336.36 × 20,144.28
  4. Step 4: Simplify right side
    34,290.56x = 953,556,890.02
  5. Step 5: Solve for x
    x = 953,556,890.02/34,290.56
  6. Step 6: Final answer
    x = 27,808.15

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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.