Home / 34,299.60-47,323.80-20,147.28

Finding the Fourth Proportional to 34,299.60, 47,323.80 and 20,147.28

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Solution

The fourth proportional to 34,299.60, 47,323.80 and 20,147.28 is: 27,797.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,299.60 : 47,323.80 = 20,147.28 : x
  2. Step 2: Convert to fraction form
    34,299.60/47,323.80 = 20,147.28/x
  3. Step 3: Cross multiply
    34,299.60x = 47,323.80 × 20,147.28
  4. Step 4: Simplify right side
    34,299.60x = 953,445,849.26
  5. Step 5: Solve for x
    x = 953,445,849.26/34,299.60
  6. Step 6: Final answer
    x = 27,797.58

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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.