Home / 39,570.89-54,605.74-21,662.45

Finding the Fourth Proportional to 39,570.89, 54,605.74 and 21,662.45

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Solution

The fourth proportional to 39,570.89, 54,605.74 and 21,662.45 is: 29,893.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,570.89 : 54,605.74 = 21,662.45 : x
  2. Step 2: Convert to fraction form
    39,570.89/54,605.74 = 21,662.45/x
  3. Step 3: Cross multiply
    39,570.89x = 54,605.74 × 21,662.45
  4. Step 4: Simplify right side
    39,570.89x = 1,182,894,140.67
  5. Step 5: Solve for x
    x = 1,182,894,140.67/39,570.89
  6. Step 6: Final answer
    x = 29,893.04

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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.