Home / 39,356.98-54,312.41-21,451.97

Finding the Fourth Proportional to 39,356.98, 54,312.41 and 21,451.97

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Solution

The fourth proportional to 39,356.98, 54,312.41 and 21,451.97 is: 29,603.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,356.98 : 54,312.41 = 21,451.97 : x
  2. Step 2: Convert to fraction form
    39,356.98/54,312.41 = 21,451.97/x
  3. Step 3: Cross multiply
    39,356.98x = 54,312.41 × 21,451.97
  4. Step 4: Simplify right side
    39,356.98x = 1,165,108,379.36
  5. Step 5: Solve for x
    x = 1,165,108,379.36/39,356.98
  6. Step 6: Final answer
    x = 29,603.60

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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.