Home / 28,331.37-42,477.89-15,860.01

Finding the Fourth Proportional to 28,331.37, 42,477.89 and 15,860.01

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Solution

The fourth proportional to 28,331.37, 42,477.89 and 15,860.01 is: 23,779.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331.37 : 42,477.89 = 15,860.01 : x
  2. Step 2: Convert to fraction form
    28,331.37/42,477.89 = 15,860.01/x
  3. Step 3: Cross multiply
    28,331.37x = 42,477.89 × 15,860.01
  4. Step 4: Simplify right side
    28,331.37x = 673,699,760.18
  5. Step 5: Solve for x
    x = 673,699,760.18/28,331.37
  6. Step 6: Final answer
    x = 23,779.29

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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.