Home / 39,515.10-59,260.31-13,213.70

Finding the Fourth Proportional to 39,515.10, 59,260.31 and 13,213.70

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Solution

The fourth proportional to 39,515.10, 59,260.31 and 13,213.70 is: 19,816.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,515.10 : 59,260.31 = 13,213.70 : x
  2. Step 2: Convert to fraction form
    39,515.10/59,260.31 = 13,213.70/x
  3. Step 3: Cross multiply
    39,515.10x = 59,260.31 × 13,213.70
  4. Step 4: Simplify right side
    39,515.10x = 783,047,958.25
  5. Step 5: Solve for x
    x = 783,047,958.25/39,515.10
  6. Step 6: Final answer
    x = 19,816.42

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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.