Home / 39,785.45-59,665.41-13,125.46

Finding the Fourth Proportional to 39,785.45, 59,665.41 and 13,125.46

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Solution

The fourth proportional to 39,785.45, 59,665.41 and 13,125.46 is: 19,683.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,785.45 : 59,665.41 = 13,125.46 : x
  2. Step 2: Convert to fraction form
    39,785.45/59,665.41 = 13,125.46/x
  3. Step 3: Cross multiply
    39,785.45x = 59,665.41 × 13,125.46
  4. Step 4: Simplify right side
    39,785.45x = 783,135,915.05
  5. Step 5: Solve for x
    x = 783,135,915.05/39,785.45
  6. Step 6: Final answer
    x = 19,683.98

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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.