Home / 29,683.06-40,940.18-18,931.22

Finding the Fourth Proportional to 29,683.06, 40,940.18 and 18,931.22

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Solution

The fourth proportional to 29,683.06, 40,940.18 and 18,931.22 is: 26,110.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,683.06 : 40,940.18 = 18,931.22 : x
  2. Step 2: Convert to fraction form
    29,683.06/40,940.18 = 18,931.22/x
  3. Step 3: Cross multiply
    29,683.06x = 40,940.18 × 18,931.22
  4. Step 4: Simplify right side
    29,683.06x = 775,047,586.07
  5. Step 5: Solve for x
    x = 775,047,586.07/29,683.06
  6. Step 6: Final answer
    x = 26,110.77

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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.