Home / 31,653.36-47,479.68-13,185.36

Finding the Fourth Proportional to 31,653.36, 47,479.68 and 13,185.36

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Solution

The fourth proportional to 31,653.36, 47,479.68 and 13,185.36 is: 19,777.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,653.36 : 47,479.68 = 13,185.36 : x
  2. Step 2: Convert to fraction form
    31,653.36/47,479.68 = 13,185.36/x
  3. Step 3: Cross multiply
    31,653.36x = 47,479.68 × 13,185.36
  4. Step 4: Simplify right side
    31,653.36x = 626,036,673.48
  5. Step 5: Solve for x
    x = 626,036,673.48/31,653.36
  6. Step 6: Final answer
    x = 19,777.89

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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.