Home / 39,223.92-54,129.34-21,318.94

Finding the Fourth Proportional to 39,223.92, 54,129.34 and 21,318.94

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Solution

The fourth proportional to 39,223.92, 54,129.34 and 21,318.94 is: 29,420.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,223.92 : 54,129.34 = 21,318.94 : x
  2. Step 2: Convert to fraction form
    39,223.92/54,129.34 = 21,318.94/x
  3. Step 3: Cross multiply
    39,223.92x = 54,129.34 × 21,318.94
  4. Step 4: Simplify right side
    39,223.92x = 1,153,980,151.70
  5. Step 5: Solve for x
    x = 1,153,980,151.70/39,223.92
  6. Step 6: Final answer
    x = 29,420.32

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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.