Home / 34,290.66-47,315.16-20,146.44

Finding the Fourth Proportional to 34,290.66, 47,315.16 and 20,146.44

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Solution

The fourth proportional to 34,290.66, 47,315.16 and 20,146.44 is: 27,798.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,290.66 : 47,315.16 = 20,146.44 : x
  2. Step 2: Convert to fraction form
    34,290.66/47,315.16 = 20,146.44/x
  3. Step 3: Cross multiply
    34,290.66x = 47,315.16 × 20,146.44
  4. Step 4: Simplify right side
    34,290.66x = 953,232,032.03
  5. Step 5: Solve for x
    x = 953,232,032.03/34,290.66
  6. Step 6: Final answer
    x = 27,798.59

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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.