Home / 30,261.63-41,749.56-18,771.21

Finding the Fourth Proportional to 30,261.63, 41,749.56 and 18,771.21

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Solution

The fourth proportional to 30,261.63, 41,749.56 and 18,771.21 is: 25,897.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,261.63 : 41,749.56 = 18,771.21 : x
  2. Step 2: Convert to fraction form
    30,261.63/41,749.56 = 18,771.21/x
  3. Step 3: Cross multiply
    30,261.63x = 41,749.56 × 18,771.21
  4. Step 4: Simplify right side
    30,261.63x = 783,689,758.17
  5. Step 5: Solve for x
    x = 783,689,758.17/30,261.63
  6. Step 6: Final answer
    x = 25,897.14

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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.