Home / 19,814.05-27,343.21-10,861.53

Finding the Fourth Proportional to 19,814.05, 27,343.21 and 10,861.53

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Solution

The fourth proportional to 19,814.05, 27,343.21 and 10,861.53 is: 14,988.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,814.05 : 27,343.21 = 10,861.53 : x
  2. Step 2: Convert to fraction form
    19,814.05/27,343.21 = 10,861.53/x
  3. Step 3: Cross multiply
    19,814.05x = 27,343.21 × 10,861.53
  4. Step 4: Simplify right side
    19,814.05x = 296,989,095.71
  5. Step 5: Solve for x
    x = 296,989,095.71/19,814.05
  6. Step 6: Final answer
    x = 14,988.81

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1.5x scale

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.