Home / 33,557.49-46,311.75-20,129.31

Finding the Fourth Proportional to 33,557.49, 46,311.75 and 20,129.31

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Solution

The fourth proportional to 33,557.49, 46,311.75 and 20,129.31 is: 27,779.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,557.49 : 46,311.75 = 20,129.31 : x
  2. Step 2: Convert to fraction form
    33,557.49/46,311.75 = 20,129.31/x
  3. Step 3: Cross multiply
    33,557.49x = 46,311.75 × 20,129.31
  4. Step 4: Simplify right side
    33,557.49x = 932,223,572.39
  5. Step 5: Solve for x
    x = 932,223,572.39/33,557.49
  6. Step 6: Final answer
    x = 27,779.90

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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.