Home / 39,256.84-54,172.89-21,351.82

Finding the Fourth Proportional to 39,256.84, 54,172.89 and 21,351.82

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Solution

The fourth proportional to 39,256.84, 54,172.89 and 21,351.82 is: 29,464.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,256.84 : 54,172.89 = 21,351.82 : x
  2. Step 2: Convert to fraction form
    39,256.84/54,172.89 = 21,351.82/x
  3. Step 3: Cross multiply
    39,256.84x = 54,172.89 × 21,351.82
  4. Step 4: Simplify right side
    39,256.84x = 1,156,689,796.16
  5. Step 5: Solve for x
    x = 1,156,689,796.16/39,256.84
  6. Step 6: Final answer
    x = 29,464.67

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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.