Home / 38,415.56-57,625.18-18,670.60

Finding the Fourth Proportional to 38,415.56, 57,625.18 and 18,670.60

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Solution

The fourth proportional to 38,415.56, 57,625.18 and 18,670.60 is: 28,006.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,415.56 : 57,625.18 = 18,670.60 : x
  2. Step 2: Convert to fraction form
    38,415.56/57,625.18 = 18,670.60/x
  3. Step 3: Cross multiply
    38,415.56x = 57,625.18 × 18,670.60
  4. Step 4: Simplify right side
    38,415.56x = 1,075,896,685.71
  5. Step 5: Solve for x
    x = 1,075,896,685.71/38,415.56
  6. Step 6: Final answer
    x = 28,006.79

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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.