Home / 27,652.81-38,160.39-15,077.56

Finding the Fourth Proportional to 27,652.81, 38,160.39 and 15,077.56

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Solution

The fourth proportional to 27,652.81, 38,160.39 and 15,077.56 is: 20,806.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,652.81 : 38,160.39 = 15,077.56 : x
  2. Step 2: Convert to fraction form
    27,652.81/38,160.39 = 15,077.56/x
  3. Step 3: Cross multiply
    27,652.81x = 38,160.39 × 15,077.56
  4. Step 4: Simplify right side
    27,652.81x = 575,365,569.85
  5. Step 5: Solve for x
    x = 575,365,569.85/27,652.81
  6. Step 6: Final answer
    x = 20,806.77

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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.