Home / 39,638.40-59,374.80-18,596.40

Finding the Fourth Proportional to 39,638.40, 59,374.80 and 18,596.40

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Solution

The fourth proportional to 39,638.40, 59,374.80 and 18,596.40 is: 27,855.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,638.40 : 59,374.80 = 18,596.40 : x
  2. Step 2: Convert to fraction form
    39,638.40/59,374.80 = 18,596.40/x
  3. Step 3: Cross multiply
    39,638.40x = 59,374.80 × 18,596.40
  4. Step 4: Simplify right side
    39,638.40x = 1,104,157,530.72
  5. Step 5: Solve for x
    x = 1,104,157,530.72/39,638.40
  6. Step 6: Final answer
    x = 27,855.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.