Home / 38,907.12-54,054.30-38,440.56

Finding the Fourth Proportional to 38,907.12, 54,054.30 and 38,440.56

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Solution

The fourth proportional to 38,907.12, 54,054.30 and 38,440.56 is: 53,406.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,907.12 : 54,054.30 = 38,440.56 : x
  2. Step 2: Convert to fraction form
    38,907.12/54,054.30 = 38,440.56/x
  3. Step 3: Cross multiply
    38,907.12x = 54,054.30 × 38,440.56
  4. Step 4: Simplify right side
    38,907.12x = 2,077,877,562.41
  5. Step 5: Solve for x
    x = 2,077,877,562.41/38,907.12
  6. Step 6: Final answer
    x = 53,406.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.