Home / 39,022.72-53,850.93-21,117.34

Finding the Fourth Proportional to 39,022.72, 53,850.93 and 21,117.34

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Solution

The fourth proportional to 39,022.72, 53,850.93 and 21,117.34 is: 29,141.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,022.72 : 53,850.93 = 21,117.34 : x
  2. Step 2: Convert to fraction form
    39,022.72/53,850.93 = 21,117.34/x
  3. Step 3: Cross multiply
    39,022.72x = 53,850.93 × 21,117.34
  4. Step 4: Simplify right side
    39,022.72x = 1,137,188,398.13
  5. Step 5: Solve for x
    x = 1,137,188,398.13/39,022.72
  6. Step 6: Final answer
    x = 29,141.70

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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.