Home / 38,630.37-53,313.32-21,634.35

Finding the Fourth Proportional to 38,630.37, 53,313.32 and 21,634.35

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Solution

The fourth proportional to 38,630.37, 53,313.32 and 21,634.35 is: 29,857.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,630.37 : 53,313.32 = 21,634.35 : x
  2. Step 2: Convert to fraction form
    38,630.37/53,313.32 = 21,634.35/x
  3. Step 3: Cross multiply
    38,630.37x = 53,313.32 × 21,634.35
  4. Step 4: Simplify right side
    38,630.37x = 1,153,398,916.37
  5. Step 5: Solve for x
    x = 1,153,398,916.37/38,630.37
  6. Step 6: Final answer
    x = 29,857.31

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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.