Home / 38,810.75-53,558.84-21,146.75

Finding the Fourth Proportional to 38,810.75, 53,558.84 and 21,146.75

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Solution

The fourth proportional to 38,810.75, 53,558.84 and 21,146.75 is: 29,182.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,810.75 : 53,558.84 = 21,146.75 : x
  2. Step 2: Convert to fraction form
    38,810.75/53,558.84 = 21,146.75/x
  3. Step 3: Cross multiply
    38,810.75x = 53,558.84 × 21,146.75
  4. Step 4: Simplify right side
    38,810.75x = 1,132,595,294.04
  5. Step 5: Solve for x
    x = 1,132,595,294.04/38,810.75
  6. Step 6: Final answer
    x = 29,182.52

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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.