Home / 27,675.18-38,190.63-15,575.40

Finding the Fourth Proportional to 27,675.18, 38,190.63 and 15,575.40

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Solution

The fourth proportional to 27,675.18, 38,190.63 and 15,575.40 is: 21,493.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,675.18 : 38,190.63 = 15,575.40 : x
  2. Step 2: Convert to fraction form
    27,675.18/38,190.63 = 15,575.40/x
  3. Step 3: Cross multiply
    27,675.18x = 38,190.63 × 15,575.40
  4. Step 4: Simplify right side
    27,675.18x = 594,834,338.50
  5. Step 5: Solve for x
    x = 594,834,338.50/27,675.18
  6. Step 6: Final answer
    x = 21,493.42

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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.