Home / 38,925.40-53,718.54-21,936.40

Finding the Fourth Proportional to 38,925.40, 53,718.54 and 21,936.40

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Solution

The fourth proportional to 38,925.40, 53,718.54 and 21,936.40 is: 30,273.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,925.40 : 53,718.54 = 21,936.40 : x
  2. Step 2: Convert to fraction form
    38,925.40/53,718.54 = 21,936.40/x
  3. Step 3: Cross multiply
    38,925.40x = 53,718.54 × 21,936.40
  4. Step 4: Simplify right side
    38,925.40x = 1,178,391,380.86
  5. Step 5: Solve for x
    x = 1,178,391,380.86/38,925.40
  6. Step 6: Final answer
    x = 30,273.07

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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.