Home / 39,689.22-54,762.57-22,912.50

Finding the Fourth Proportional to 39,689.22, 54,762.57 and 22,912.50

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Solution

The fourth proportional to 39,689.22, 54,762.57 and 22,912.50 is: 31,614.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,689.22 : 54,762.57 = 22,912.50 : x
  2. Step 2: Convert to fraction form
    39,689.22/54,762.57 = 22,912.50/x
  3. Step 3: Cross multiply
    39,689.22x = 54,762.57 × 22,912.50
  4. Step 4: Simplify right side
    39,689.22x = 1,254,747,385.13
  5. Step 5: Solve for x
    x = 1,254,747,385.13/39,689.22
  6. Step 6: Final answer
    x = 31,614.31

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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.