Home / 28,707.51-43,021.17-13,912.50

Finding the Fourth Proportional to 28,707.51, 43,021.17 and 13,912.50

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Solution

The fourth proportional to 28,707.51, 43,021.17 and 13,912.50 is: 20,849.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707.51 : 43,021.17 = 13,912.50 : x
  2. Step 2: Convert to fraction form
    28,707.51/43,021.17 = 13,912.50/x
  3. Step 3: Cross multiply
    28,707.51x = 43,021.17 × 13,912.50
  4. Step 4: Simplify right side
    28,707.51x = 598,532,027.63
  5. Step 5: Solve for x
    x = 598,532,027.63/28,707.51
  6. Step 6: Final answer
    x = 20,849.32

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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.