Home / 39,918.88-55,085.70-22,014.10

Finding the Fourth Proportional to 39,918.88, 55,085.70 and 22,014.10

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Solution

The fourth proportional to 39,918.88, 55,085.70 and 22,014.10 is: 30,378.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,918.88 : 55,085.70 = 22,014.10 : x
  2. Step 2: Convert to fraction form
    39,918.88/55,085.70 = 22,014.10/x
  3. Step 3: Cross multiply
    39,918.88x = 55,085.70 × 22,014.10
  4. Step 4: Simplify right side
    39,918.88x = 1,212,662,108.37
  5. Step 5: Solve for x
    x = 1,212,662,108.37/39,918.88
  6. Step 6: Final answer
    x = 30,378.16

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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.