Home / 27,868.12-38,457.90-15,293.08

Finding the Fourth Proportional to 27,868.12, 38,457.90 and 15,293.08

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Solution

The fourth proportional to 27,868.12, 38,457.90 and 15,293.08 is: 21,104.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,868.12 : 38,457.90 = 15,293.08 : x
  2. Step 2: Convert to fraction form
    27,868.12/38,457.90 = 15,293.08/x
  3. Step 3: Cross multiply
    27,868.12x = 38,457.90 × 15,293.08
  4. Step 4: Simplify right side
    27,868.12x = 588,139,741.33
  5. Step 5: Solve for x
    x = 588,139,741.33/27,868.12
  6. Step 6: Final answer
    x = 21,104.39

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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.