Home / 39,758.09-59,644.45-13,105.67

Finding the Fourth Proportional to 39,758.09, 59,644.45 and 13,105.67

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Solution

The fourth proportional to 39,758.09, 59,644.45 and 13,105.67 is: 19,660.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,758.09 : 59,644.45 = 13,105.67 : x
  2. Step 2: Convert to fraction form
    39,758.09/59,644.45 = 13,105.67/x
  3. Step 3: Cross multiply
    39,758.09x = 59,644.45 × 13,105.67
  4. Step 4: Simplify right side
    39,758.09x = 781,680,148.05
  5. Step 5: Solve for x
    x = 781,680,148.05/39,758.09
  6. Step 6: Final answer
    x = 19,660.91

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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.