Home / 39,461.84-54,461.09-21,559.54

Finding the Fourth Proportional to 39,461.84, 54,461.09 and 21,559.54

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Solution

The fourth proportional to 39,461.84, 54,461.09 and 21,559.54 is: 29,754.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,461.84 : 54,461.09 = 21,559.54 : x
  2. Step 2: Convert to fraction form
    39,461.84/54,461.09 = 21,559.54/x
  3. Step 3: Cross multiply
    39,461.84x = 54,461.09 × 21,559.54
  4. Step 4: Simplify right side
    39,461.84x = 1,174,155,775.99
  5. Step 5: Solve for x
    x = 1,174,155,775.99/39,461.84
  6. Step 6: Final answer
    x = 29,754.21

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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.