Home / 38,963.15-53,766.45-21,968

Finding the Fourth Proportional to 38,963.15, 53,766.45 and 21,968

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Solution

The fourth proportional to 38,963.15, 53,766.45 and 21,968 is: 30,314.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,963.15 : 53,766.45 = 21,968 : x
  2. Step 2: Convert to fraction form
    38,963.15/53,766.45 = 21,968/x
  3. Step 3: Cross multiply
    38,963.15x = 53,766.45 × 21,968
  4. Step 4: Simplify right side
    38,963.15x = 1,181,141,263.76
  5. Step 5: Solve for x
    x = 1,181,141,263.76/38,963.15
  6. Step 6: Final answer
    x = 30,314.32

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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.