Home / 28,985.65-40,000.13-16,411.57

Finding the Fourth Proportional to 28,985.65, 40,000.13 and 16,411.57

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Solution

The fourth proportional to 28,985.65, 40,000.13 and 16,411.57 is: 22,647.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.65 : 40,000.13 = 16,411.57 : x
  2. Step 2: Convert to fraction form
    28,985.65/40,000.13 = 16,411.57/x
  3. Step 3: Cross multiply
    28,985.65x = 40,000.13 × 16,411.57
  4. Step 4: Simplify right side
    28,985.65x = 656,464,933.50
  5. Step 5: Solve for x
    x = 656,464,933.50/28,985.65
  6. Step 6: Final answer
    x = 22,647.93

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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.