Home / 37,688.21-52,005.87-21,777.78

Finding the Fourth Proportional to 37,688.21, 52,005.87 and 21,777.78

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Solution

The fourth proportional to 37,688.21, 52,005.87 and 21,777.78 is: 30,051.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,688.21 : 52,005.87 = 21,777.78 : x
  2. Step 2: Convert to fraction form
    37,688.21/52,005.87 = 21,777.78/x
  3. Step 3: Cross multiply
    37,688.21x = 52,005.87 × 21,777.78
  4. Step 4: Simplify right side
    37,688.21x = 1,132,572,395.57
  5. Step 5: Solve for x
    x = 1,132,572,395.57/37,688.21
  6. Step 6: Final answer
    x = 30,051.11

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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.