Home / 28,133.93-42,171.44-13,325.21

Finding the Fourth Proportional to 28,133.93, 42,171.44 and 13,325.21

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Solution

The fourth proportional to 28,133.93, 42,171.44 and 13,325.21 is: 19,973.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.93 : 42,171.44 = 13,325.21 : x
  2. Step 2: Convert to fraction form
    28,133.93/42,171.44 = 13,325.21/x
  3. Step 3: Cross multiply
    28,133.93x = 42,171.44 × 13,325.21
  4. Step 4: Simplify right side
    28,133.93x = 561,943,174.66
  5. Step 5: Solve for x
    x = 561,943,174.66/28,133.93
  6. Step 6: Final answer
    x = 19,973.86

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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.