Home / 28,055.50-38,716.59-15,480.25

Finding the Fourth Proportional to 28,055.50, 38,716.59 and 15,480.25

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Solution

The fourth proportional to 28,055.50, 38,716.59 and 15,480.25 is: 21,362.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.50 : 38,716.59 = 15,480.25 : x
  2. Step 2: Convert to fraction form
    28,055.50/38,716.59 = 15,480.25/x
  3. Step 3: Cross multiply
    28,055.50x = 38,716.59 × 15,480.25
  4. Step 4: Simplify right side
    28,055.50x = 599,342,492.35
  5. Step 5: Solve for x
    x = 599,342,492.35/28,055.50
  6. Step 6: Final answer
    x = 21,362.75

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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.