Home / 39,687.64-59,527.80-13,392.61

Finding the Fourth Proportional to 39,687.64, 59,527.80 and 13,392.61

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Solution

The fourth proportional to 39,687.64, 59,527.80 and 13,392.61 is: 20,087.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,687.64 : 59,527.80 = 13,392.61 : x
  2. Step 2: Convert to fraction form
    39,687.64/59,527.80 = 13,392.61/x
  3. Step 3: Cross multiply
    39,687.64x = 59,527.80 × 13,392.61
  4. Step 4: Simplify right side
    39,687.64x = 797,232,460.74
  5. Step 5: Solve for x
    x = 797,232,460.74/39,687.64
  6. Step 6: Final answer
    x = 20,087.68

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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.