Home / 39,968.02-55,157.70-22,977.78

Finding the Fourth Proportional to 39,968.02, 55,157.70 and 22,977.78

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Solution

The fourth proportional to 39,968.02, 55,157.70 and 22,977.78 is: 31,710.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,968.02 : 55,157.70 = 22,977.78 : x
  2. Step 2: Convert to fraction form
    39,968.02/55,157.70 = 22,977.78/x
  3. Step 3: Cross multiply
    39,968.02x = 55,157.70 × 22,977.78
  4. Step 4: Simplify right side
    39,968.02x = 1,267,401,495.91
  5. Step 5: Solve for x
    x = 1,267,401,495.91/39,968.02
  6. Step 6: Final answer
    x = 31,710.39

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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.