Home / 39,511.81-54,526.30-21,606.83

Finding the Fourth Proportional to 39,511.81, 54,526.30 and 21,606.83

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Solution

The fourth proportional to 39,511.81, 54,526.30 and 21,606.83 is: 29,817.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,511.81 : 54,526.30 = 21,606.83 : x
  2. Step 2: Convert to fraction form
    39,511.81/54,526.30 = 21,606.83/x
  3. Step 3: Cross multiply
    39,511.81x = 54,526.30 × 21,606.83
  4. Step 4: Simplify right side
    39,511.81x = 1,178,140,372.45
  5. Step 5: Solve for x
    x = 1,178,140,372.45/39,511.81
  6. Step 6: Final answer
    x = 29,817.42

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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.