Home / 39,816.63-59,724.41-13,539.69

Finding the Fourth Proportional to 39,816.63, 59,724.41 and 13,539.69

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Solution

The fourth proportional to 39,816.63, 59,724.41 and 13,539.69 is: 20,309.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,816.63 : 59,724.41 = 13,539.69 : x
  2. Step 2: Convert to fraction form
    39,816.63/59,724.41 = 13,539.69/x
  3. Step 3: Cross multiply
    39,816.63x = 59,724.41 × 13,539.69
  4. Step 4: Simplify right side
    39,816.63x = 808,649,929.13
  5. Step 5: Solve for x
    x = 808,649,929.13/39,816.63
  6. Step 6: Final answer
    x = 20,309.35

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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.