Home / 30,558.12-45,832.34-18,707.82

Finding the Fourth Proportional to 30,558.12, 45,832.34 and 18,707.82

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Solution

The fourth proportional to 30,558.12, 45,832.34 and 18,707.82 is: 28,058.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,558.12 : 45,832.34 = 18,707.82 : x
  2. Step 2: Convert to fraction form
    30,558.12/45,832.34 = 18,707.82/x
  3. Step 3: Cross multiply
    30,558.12x = 45,832.34 × 18,707.82
  4. Step 4: Simplify right side
    30,558.12x = 857,423,166.90
  5. Step 5: Solve for x
    x = 857,423,166.90/30,558.12
  6. Step 6: Final answer
    x = 28,058.77

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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.