Home / 31,167.37-43,058.01-20,437.84

Finding the Fourth Proportional to 31,167.37, 43,058.01 and 20,437.84

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Solution

The fourth proportional to 31,167.37, 43,058.01 and 20,437.84 is: 28,235.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,167.37 : 43,058.01 = 20,437.84 : x
  2. Step 2: Convert to fraction form
    31,167.37/43,058.01 = 20,437.84/x
  3. Step 3: Cross multiply
    31,167.37x = 43,058.01 × 20,437.84
  4. Step 4: Simplify right side
    31,167.37x = 880,012,719.10
  5. Step 5: Solve for x
    x = 880,012,719.10/31,167.37
  6. Step 6: Final answer
    x = 28,235.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.