Home / 27,762.40-38,311.77-15,825.34

Finding the Fourth Proportional to 27,762.40, 38,311.77 and 15,825.34

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Solution

The fourth proportional to 27,762.40, 38,311.77 and 15,825.34 is: 21,838.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,762.40 : 38,311.77 = 15,825.34 : x
  2. Step 2: Convert to fraction form
    27,762.40/38,311.77 = 15,825.34/x
  3. Step 3: Cross multiply
    27,762.40x = 38,311.77 × 15,825.34
  4. Step 4: Simplify right side
    27,762.40x = 606,296,786.25
  5. Step 5: Solve for x
    x = 606,296,786.25/27,762.40
  6. Step 6: Final answer
    x = 21,838.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.