Home / 28,911.24-43,366.18-13,328.86

Finding the Fourth Proportional to 28,911.24, 43,366.18 and 13,328.86

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Solution

The fourth proportional to 28,911.24, 43,366.18 and 13,328.86 is: 19,992.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,911.24 : 43,366.18 = 13,328.86 : x
  2. Step 2: Convert to fraction form
    28,911.24/43,366.18 = 13,328.86/x
  3. Step 3: Cross multiply
    28,911.24x = 43,366.18 × 13,328.86
  4. Step 4: Simplify right side
    28,911.24x = 578,021,741.95
  5. Step 5: Solve for x
    x = 578,021,741.95/28,911.24
  6. Step 6: Final answer
    x = 19,992.98

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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.