Home / 39,776.78-59,652.41-13,116.78

Finding the Fourth Proportional to 39,776.78, 59,652.41 and 13,116.78

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Solution

The fourth proportional to 39,776.78, 59,652.41 and 13,116.78 is: 19,670.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,776.78 : 59,652.41 = 13,116.78 : x
  2. Step 2: Convert to fraction form
    39,776.78/59,652.41 = 13,116.78/x
  3. Step 3: Cross multiply
    39,776.78x = 59,652.41 × 13,116.78
  4. Step 4: Simplify right side
    39,776.78x = 782,447,571.23
  5. Step 5: Solve for x
    x = 782,447,571.23/39,776.78
  6. Step 6: Final answer
    x = 19,670.97

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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.