Home / 38,722.90-57,822.05-30,735.79

Finding the Fourth Proportional to 38,722.90, 57,822.05 and 30,735.79

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Solution

The fourth proportional to 38,722.90, 57,822.05 and 30,735.79 is: 45,895.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,722.90 : 57,822.05 = 30,735.79 : x
  2. Step 2: Convert to fraction form
    38,722.90/57,822.05 = 30,735.79/x
  3. Step 3: Cross multiply
    38,722.90x = 57,822.05 × 30,735.79
  4. Step 4: Simplify right side
    38,722.90x = 1,777,206,386.17
  5. Step 5: Solve for x
    x = 1,777,206,386.17/38,722.90
  6. Step 6: Final answer
    x = 45,895.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.