Home / 38,135.31-52,628.67-21,141.36

Finding the Fourth Proportional to 38,135.31, 52,628.67 and 21,141.36

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Solution

The fourth proportional to 38,135.31, 52,628.67 and 21,141.36 is: 29,176.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,135.31 : 52,628.67 = 21,141.36 : x
  2. Step 2: Convert to fraction form
    38,135.31/52,628.67 = 21,141.36/x
  3. Step 3: Cross multiply
    38,135.31x = 52,628.67 × 21,141.36
  4. Step 4: Simplify right side
    38,135.31x = 1,112,641,658.79
  5. Step 5: Solve for x
    x = 1,112,641,658.79/38,135.31
  6. Step 6: Final answer
    x = 29,176.15

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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.