Home / 21,457.70-32,186.56-6,666.62

Finding the Fourth Proportional to 21,457.70, 32,186.56 and 6,666.62

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Solution

The fourth proportional to 21,457.70, 32,186.56 and 6,666.62 is: 9,999.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457.70 : 32,186.56 = 6,666.62 : x
  2. Step 2: Convert to fraction form
    21,457.70/32,186.56 = 6,666.62/x
  3. Step 3: Cross multiply
    21,457.70x = 32,186.56 × 6,666.62
  4. Step 4: Simplify right side
    21,457.70x = 214,575,628.43
  5. Step 5: Solve for x
    x = 214,575,628.43/21,457.70
  6. Step 6: Final answer
    x = 9,999.94

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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.