Home / 39,354.12-54,309.72-21,450.36

Finding the Fourth Proportional to 39,354.12, 54,309.72 and 21,450.36

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Solution

The fourth proportional to 39,354.12, 54,309.72 and 21,450.36 is: 29,602.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,354.12 : 54,309.72 = 21,450.36 : x
  2. Step 2: Convert to fraction form
    39,354.12/54,309.72 = 21,450.36/x
  3. Step 3: Cross multiply
    39,354.12x = 54,309.72 × 21,450.36
  4. Step 4: Simplify right side
    39,354.12x = 1,164,963,045.50
  5. Step 5: Solve for x
    x = 1,164,963,045.50/39,354.12
  6. Step 6: Final answer
    x = 29,602.06

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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.