Home / 39,993.16-59,966.52-13,690.84

Finding the Fourth Proportional to 39,993.16, 59,966.52 and 13,690.84

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Solution

The fourth proportional to 39,993.16, 59,966.52 and 13,690.84 is: 20,528.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,993.16 : 59,966.52 = 13,690.84 : x
  2. Step 2: Convert to fraction form
    39,993.16/59,966.52 = 13,690.84/x
  3. Step 3: Cross multiply
    39,993.16x = 59,966.52 × 13,690.84
  4. Step 4: Simplify right side
    39,993.16x = 820,992,030.68
  5. Step 5: Solve for x
    x = 820,992,030.68/39,993.16
  6. Step 6: Final answer
    x = 20,528.31

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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.