Home / 39,987.75-55,187.97-23,220.75

Finding the Fourth Proportional to 39,987.75, 55,187.97 and 23,220.75

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Solution

The fourth proportional to 39,987.75, 55,187.97 and 23,220.75 is: 32,047.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,987.75 : 55,187.97 = 23,220.75 : x
  2. Step 2: Convert to fraction form
    39,987.75/55,187.97 = 23,220.75/x
  3. Step 3: Cross multiply
    39,987.75x = 55,187.97 × 23,220.75
  4. Step 4: Simplify right side
    39,987.75x = 1,281,506,054.38
  5. Step 5: Solve for x
    x = 1,281,506,054.38/39,987.75
  6. Step 6: Final answer
    x = 32,047.47

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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.