Home / 39,832.98-54,971.07-21,929.64

Finding the Fourth Proportional to 39,832.98, 54,971.07 and 21,929.64

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Solution

The fourth proportional to 39,832.98, 54,971.07 and 21,929.64 is: 30,263.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,832.98 : 54,971.07 = 21,929.64 : x
  2. Step 2: Convert to fraction form
    39,832.98/54,971.07 = 21,929.64/x
  3. Step 3: Cross multiply
    39,832.98x = 54,971.07 × 21,929.64
  4. Step 4: Simplify right side
    39,832.98x = 1,205,495,775.51
  5. Step 5: Solve for x
    x = 1,205,495,775.51/39,832.98
  6. Step 6: Final answer
    x = 30,263.76

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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.