Home / 39,867.60-55,017.74-21,962.23

Finding the Fourth Proportional to 39,867.60, 55,017.74 and 21,962.23

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Solution

The fourth proportional to 39,867.60, 55,017.74 and 21,962.23 is: 30,308.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,867.60 : 55,017.74 = 21,962.23 : x
  2. Step 2: Convert to fraction form
    39,867.60/55,017.74 = 21,962.23/x
  3. Step 3: Cross multiply
    39,867.60x = 55,017.74 × 21,962.23
  4. Step 4: Simplify right side
    39,867.60x = 1,208,312,150.15
  5. Step 5: Solve for x
    x = 1,208,312,150.15/39,867.60
  6. Step 6: Final answer
    x = 30,308.13

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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.