Home / 27,648.42-38,158.77-15,709.38

Finding the Fourth Proportional to 27,648.42, 38,158.77 and 15,709.38

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Solution

The fourth proportional to 27,648.42, 38,158.77 and 15,709.38 is: 21,681.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,648.42 : 38,158.77 = 15,709.38 : x
  2. Step 2: Convert to fraction form
    27,648.42/38,158.77 = 15,709.38/x
  3. Step 3: Cross multiply
    27,648.42x = 38,158.77 × 15,709.38
  4. Step 4: Simplify right side
    27,648.42x = 599,450,618.26
  5. Step 5: Solve for x
    x = 599,450,618.26/27,648.42
  6. Step 6: Final answer
    x = 21,681.19

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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.