Home / 34,290.72-47,322.54-20,143.44

Finding the Fourth Proportional to 34,290.72, 47,322.54 and 20,143.44

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Solution

The fourth proportional to 34,290.72, 47,322.54 and 20,143.44 is: 27,798.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,290.72 : 47,322.54 = 20,143.44 : x
  2. Step 2: Convert to fraction form
    34,290.72/47,322.54 = 20,143.44/x
  3. Step 3: Cross multiply
    34,290.72x = 47,322.54 × 20,143.44
  4. Step 4: Simplify right side
    34,290.72x = 953,238,745.14
  5. Step 5: Solve for x
    x = 953,238,745.14/34,290.72
  6. Step 6: Final answer
    x = 27,798.74

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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.