Home / 34,120.89-47,087.37-18,808.11

Finding the Fourth Proportional to 34,120.89, 47,087.37 and 18,808.11

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Solution

The fourth proportional to 34,120.89, 47,087.37 and 18,808.11 is: 25,955.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,120.89 : 47,087.37 = 18,808.11 : x
  2. Step 2: Convert to fraction form
    34,120.89/47,087.37 = 18,808.11/x
  3. Step 3: Cross multiply
    34,120.89x = 47,087.37 × 18,808.11
  4. Step 4: Simplify right side
    34,120.89x = 885,624,434.57
  5. Step 5: Solve for x
    x = 885,624,434.57/34,120.89
  6. Step 6: Final answer
    x = 25,955.49

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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.