Home / 28,225.73-38,951.93-15,480.07

Finding the Fourth Proportional to 28,225.73, 38,951.93 and 15,480.07

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Solution

The fourth proportional to 28,225.73, 38,951.93 and 15,480.07 is: 21,362.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225.73 : 38,951.93 = 15,480.07 : x
  2. Step 2: Convert to fraction form
    28,225.73/38,951.93 = 15,480.07/x
  3. Step 3: Cross multiply
    28,225.73x = 38,951.93 × 15,480.07
  4. Step 4: Simplify right side
    28,225.73x = 602,978,544.36
  5. Step 5: Solve for x
    x = 602,978,544.36/28,225.73
  6. Step 6: Final answer
    x = 21,362.72

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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.