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Finding the Fourth Proportional to 43,989, 65,942.51 and 17,349.45

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Solution

The fourth proportional to 43,989, 65,942.51 and 17,349.45 is: 26,008.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,989 : 65,942.51 = 17,349.45 : x
  2. Step 2: Convert to fraction form
    43,989/65,942.51 = 17,349.45/x
  3. Step 3: Cross multiply
    43,989x = 65,942.51 × 17,349.45
  4. Step 4: Simplify right side
    43,989x = 1,144,066,193.37
  5. Step 5: Solve for x
    x = 1,144,066,193.37/43,989
  6. Step 6: Final answer
    x = 26,008.01

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1.5x scale

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.