Home / 39,210.24-54,110.24-21,305.12

Finding the Fourth Proportional to 39,210.24, 54,110.24 and 21,305.12

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Solution

The fourth proportional to 39,210.24, 54,110.24 and 21,305.12 is: 29,401.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,210.24 : 54,110.24 = 21,305.12 : x
  2. Step 2: Convert to fraction form
    39,210.24/54,110.24 = 21,305.12/x
  3. Step 3: Cross multiply
    39,210.24x = 54,110.24 × 21,305.12
  4. Step 4: Simplify right side
    39,210.24x = 1,152,825,156.43
  5. Step 5: Solve for x
    x = 1,152,825,156.43/39,210.24
  6. Step 6: Final answer
    x = 29,401.12

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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.