Home / 21,077.63-31,618.26-5,495.25

Finding the Fourth Proportional to 21,077.63, 31,618.26 and 5,495.25

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Solution

The fourth proportional to 21,077.63, 31,618.26 and 5,495.25 is: 8,243.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,077.63 : 31,618.26 = 5,495.25 : x
  2. Step 2: Convert to fraction form
    21,077.63/31,618.26 = 5,495.25/x
  3. Step 3: Cross multiply
    21,077.63x = 31,618.26 × 5,495.25
  4. Step 4: Simplify right side
    21,077.63x = 173,750,243.27
  5. Step 5: Solve for x
    x = 173,750,243.27/21,077.63
  6. Step 6: Final answer
    x = 8,243.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.