Home / 28,891.03-43,301.10-16,421.50

Finding the Fourth Proportional to 28,891.03, 43,301.10 and 16,421.50

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Solution

The fourth proportional to 28,891.03, 43,301.10 and 16,421.50 is: 24,612.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,891.03 : 43,301.10 = 16,421.50 : x
  2. Step 2: Convert to fraction form
    28,891.03/43,301.10 = 16,421.50/x
  3. Step 3: Cross multiply
    28,891.03x = 43,301.10 × 16,421.50
  4. Step 4: Simplify right side
    28,891.03x = 711,069,013.65
  5. Step 5: Solve for x
    x = 711,069,013.65/28,891.03
  6. Step 6: Final answer
    x = 24,612.10

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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.