Home / 27,673.12-38,189.10-15,735.75

Finding the Fourth Proportional to 27,673.12, 38,189.10 and 15,735.75

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Solution

The fourth proportional to 27,673.12, 38,189.10 and 15,735.75 is: 21,715.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,673.12 : 38,189.10 = 15,735.75 : x
  2. Step 2: Convert to fraction form
    27,673.12/38,189.10 = 15,735.75/x
  3. Step 3: Cross multiply
    27,673.12x = 38,189.10 × 15,735.75
  4. Step 4: Simplify right side
    27,673.12x = 600,934,130.33
  5. Step 5: Solve for x
    x = 600,934,130.33/27,673.12
  6. Step 6: Final answer
    x = 21,715.45

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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.