Home / 27,709.02-38,209.35-18,265.50

Finding the Fourth Proportional to 27,709.02, 38,209.35 and 18,265.50

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Solution

The fourth proportional to 27,709.02, 38,209.35 and 18,265.50 is: 25,187.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,709.02 : 38,209.35 = 18,265.50 : x
  2. Step 2: Convert to fraction form
    27,709.02/38,209.35 = 18,265.50/x
  3. Step 3: Cross multiply
    27,709.02x = 38,209.35 × 18,265.50
  4. Step 4: Simplify right side
    27,709.02x = 697,912,882.43
  5. Step 5: Solve for x
    x = 697,912,882.43/27,709.02
  6. Step 6: Final answer
    x = 25,187.21

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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.