Home / 39,515.19-59,260.48-13,213.78

Finding the Fourth Proportional to 39,515.19, 59,260.48 and 13,213.78

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Solution

The fourth proportional to 39,515.19, 59,260.48 and 13,213.78 is: 19,816.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,515.19 : 59,260.48 = 13,213.78 : x
  2. Step 2: Convert to fraction form
    39,515.19/59,260.48 = 13,213.78/x
  3. Step 3: Cross multiply
    39,515.19x = 59,260.48 × 13,213.78
  4. Step 4: Simplify right side
    39,515.19x = 783,054,945.41
  5. Step 5: Solve for x
    x = 783,054,945.41/39,515.19
  6. Step 6: Final answer
    x = 19,816.56

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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.