Home / 38,435.76-57,570.30-18,672.84

Finding the Fourth Proportional to 38,435.76, 57,570.30 and 18,672.84

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Solution

The fourth proportional to 38,435.76, 57,570.30 and 18,672.84 is: 27,968.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,435.76 : 57,570.30 = 18,672.84 : x
  2. Step 2: Convert to fraction form
    38,435.76/57,570.30 = 18,672.84/x
  3. Step 3: Cross multiply
    38,435.76x = 57,570.30 × 18,672.84
  4. Step 4: Simplify right side
    38,435.76x = 1,075,001,000.65
  5. Step 5: Solve for x
    x = 1,075,001,000.65/38,435.76
  6. Step 6: Final answer
    x = 27,968.77

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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.