Home / 28,989.96-43,497.30-12,357.82

Finding the Fourth Proportional to 28,989.96, 43,497.30 and 12,357.82

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Solution

The fourth proportional to 28,989.96, 43,497.30 and 12,357.82 is: 18,542.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,989.96 : 43,497.30 = 12,357.82 : x
  2. Step 2: Convert to fraction form
    28,989.96/43,497.30 = 12,357.82/x
  3. Step 3: Cross multiply
    28,989.96x = 43,497.30 × 12,357.82
  4. Step 4: Simplify right side
    28,989.96x = 537,531,803.89
  5. Step 5: Solve for x
    x = 537,531,803.89/28,989.96
  6. Step 6: Final answer
    x = 18,542.00

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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.