Home / 30,985.12-46,458.96-12,495.52

Finding the Fourth Proportional to 30,985.12, 46,458.96 and 12,495.52

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Solution

The fourth proportional to 30,985.12, 46,458.96 and 12,495.52 is: 18,735.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,985.12 : 46,458.96 = 12,495.52 : x
  2. Step 2: Convert to fraction form
    30,985.12/46,458.96 = 12,495.52/x
  3. Step 3: Cross multiply
    30,985.12x = 46,458.96 × 12,495.52
  4. Step 4: Simplify right side
    30,985.12x = 580,528,863.86
  5. Step 5: Solve for x
    x = 580,528,863.86/30,985.12
  6. Step 6: Final answer
    x = 18,735.73

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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.