Home / 27,207.96-40,807.86-12,972.84

Finding the Fourth Proportional to 27,207.96, 40,807.86 and 12,972.84

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Solution

The fourth proportional to 27,207.96, 40,807.86 and 12,972.84 is: 19,457.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,207.96 : 40,807.86 = 12,972.84 : x
  2. Step 2: Convert to fraction form
    27,207.96/40,807.86 = 12,972.84/x
  3. Step 3: Cross multiply
    27,207.96x = 40,807.86 × 12,972.84
  4. Step 4: Simplify right side
    27,207.96x = 529,393,838.52
  5. Step 5: Solve for x
    x = 529,393,838.52/27,207.96
  6. Step 6: Final answer
    x = 19,457.31

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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.