Home / 39,410.35-54,385.83-21,505.50

Finding the Fourth Proportional to 39,410.35, 54,385.83 and 21,505.50

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Solution

The fourth proportional to 39,410.35, 54,385.83 and 21,505.50 is: 29,677.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,410.35 : 54,385.83 = 21,505.50 : x
  2. Step 2: Convert to fraction form
    39,410.35/54,385.83 = 21,505.50/x
  3. Step 3: Cross multiply
    39,410.35x = 54,385.83 × 21,505.50
  4. Step 4: Simplify right side
    39,410.35x = 1,169,594,467.07
  5. Step 5: Solve for x
    x = 1,169,594,467.07/39,410.35
  6. Step 6: Final answer
    x = 29,677.34

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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.