Home / 39,210.41-54,110.28-21,305.50

Finding the Fourth Proportional to 39,210.41, 54,110.28 and 21,305.50

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Solution

The fourth proportional to 39,210.41, 54,110.28 and 21,305.50 is: 29,401.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,210.41 : 54,110.28 = 21,305.50 : x
  2. Step 2: Convert to fraction form
    39,210.41/54,110.28 = 21,305.50/x
  3. Step 3: Cross multiply
    39,210.41x = 54,110.28 × 21,305.50
  4. Step 4: Simplify right side
    39,210.41x = 1,152,846,515.16
  5. Step 5: Solve for x
    x = 1,152,846,515.16/39,210.41
  6. Step 6: Final answer
    x = 29,401.54

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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.