Home / 38,628.32-57,922.88-18,877.28

Finding the Fourth Proportional to 38,628.32, 57,922.88 and 18,877.28

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Solution

The fourth proportional to 38,628.32, 57,922.88 and 18,877.28 is: 28,306.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,628.32 : 57,922.88 = 18,877.28 : x
  2. Step 2: Convert to fraction form
    38,628.32/57,922.88 = 18,877.28/x
  3. Step 3: Cross multiply
    38,628.32x = 57,922.88 × 18,877.28
  4. Step 4: Simplify right side
    38,628.32x = 1,093,426,424.17
  5. Step 5: Solve for x
    x = 1,093,426,424.17/38,628.32
  6. Step 6: Final answer
    x = 28,306.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.