Home / 39,493.58-59,228.40-20,763.51

Finding the Fourth Proportional to 39,493.58, 59,228.40 and 20,763.51

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Solution

The fourth proportional to 39,493.58, 59,228.40 and 20,763.51 is: 31,138.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,493.58 : 59,228.40 = 20,763.51 : x
  2. Step 2: Convert to fraction form
    39,493.58/59,228.40 = 20,763.51/x
  3. Step 3: Cross multiply
    39,493.58x = 59,228.40 × 20,763.51
  4. Step 4: Simplify right side
    39,493.58x = 1,229,789,801.98
  5. Step 5: Solve for x
    x = 1,229,789,801.98/39,493.58
  6. Step 6: Final answer
    x = 31,138.98

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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.