Home / 29,455.08-40,644.36-19,915.74

Finding the Fourth Proportional to 29,455.08, 40,644.36 and 19,915.74

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Solution

The fourth proportional to 29,455.08, 40,644.36 and 19,915.74 is: 27,481.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,455.08 : 40,644.36 = 19,915.74 : x
  2. Step 2: Convert to fraction form
    29,455.08/40,644.36 = 19,915.74/x
  3. Step 3: Cross multiply
    29,455.08x = 40,644.36 × 19,915.74
  4. Step 4: Simplify right side
    29,455.08x = 809,462,506.23
  5. Step 5: Solve for x
    x = 809,462,506.23/29,455.08
  6. Step 6: Final answer
    x = 27,481.25

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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.