Home / 39,570.84-54,607.86-21,665.97

Finding the Fourth Proportional to 39,570.84, 54,607.86 and 21,665.97

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Solution

The fourth proportional to 39,570.84, 54,607.86 and 21,665.97 is: 29,899.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,570.84 : 54,607.86 = 21,665.97 : x
  2. Step 2: Convert to fraction form
    39,570.84/54,607.86 = 21,665.97/x
  3. Step 3: Cross multiply
    39,570.84x = 54,607.86 × 21,665.97
  4. Step 4: Simplify right side
    39,570.84x = 1,183,132,256.52
  5. Step 5: Solve for x
    x = 1,183,132,256.52/39,570.84
  6. Step 6: Final answer
    x = 29,899.09

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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.