Home / 28,670.67-43,005.99-18,807.66

Finding the Fourth Proportional to 28,670.67, 43,005.99 and 18,807.66

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Solution

The fourth proportional to 28,670.67, 43,005.99 and 18,807.66 is: 28,211.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,670.67 : 43,005.99 = 18,807.66 : x
  2. Step 2: Convert to fraction form
    28,670.67/43,005.99 = 18,807.66/x
  3. Step 3: Cross multiply
    28,670.67x = 43,005.99 × 18,807.66
  4. Step 4: Simplify right side
    28,670.67x = 808,842,037.88
  5. Step 5: Solve for x
    x = 808,842,037.88/28,670.67
  6. Step 6: Final answer
    x = 28,211.48

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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.