Home / 27,695.05-38,219.55-15,759.50

Finding the Fourth Proportional to 27,695.05, 38,219.55 and 15,759.50

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Solution

The fourth proportional to 27,695.05, 38,219.55 and 15,759.50 is: 21,748.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,695.05 : 38,219.55 = 15,759.50 : x
  2. Step 2: Convert to fraction form
    27,695.05/38,219.55 = 15,759.50/x
  3. Step 3: Cross multiply
    27,695.05x = 38,219.55 × 15,759.50
  4. Step 4: Simplify right side
    27,695.05x = 602,320,748.03
  5. Step 5: Solve for x
    x = 602,320,748.03/27,695.05
  6. Step 6: Final answer
    x = 21,748.32

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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.