Home / 20,707.42-31,053.96-5,912.37

Finding the Fourth Proportional to 20,707.42, 31,053.96 and 5,912.37

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Solution

The fourth proportional to 20,707.42, 31,053.96 and 5,912.37 is: 8,866.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707.42 : 31,053.96 = 5,912.37 : x
  2. Step 2: Convert to fraction form
    20,707.42/31,053.96 = 5,912.37/x
  3. Step 3: Cross multiply
    20,707.42x = 31,053.96 × 5,912.37
  4. Step 4: Simplify right side
    20,707.42x = 183,602,501.49
  5. Step 5: Solve for x
    x = 183,602,501.49/20,707.42
  6. Step 6: Final answer
    x = 8,866.51

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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.