Home / 39,772.60-59,670.03-13,479.32

Finding the Fourth Proportional to 39,772.60, 59,670.03 and 13,479.32

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Solution

The fourth proportional to 39,772.60, 59,670.03 and 13,479.32 is: 20,222.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,772.60 : 59,670.03 = 13,479.32 : x
  2. Step 2: Convert to fraction form
    39,772.60/59,670.03 = 13,479.32/x
  3. Step 3: Cross multiply
    39,772.60x = 59,670.03 × 13,479.32
  4. Step 4: Simplify right side
    39,772.60x = 804,311,428.78
  5. Step 5: Solve for x
    x = 804,311,428.78/39,772.60
  6. Step 6: Final answer
    x = 20,222.75

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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.