Home / 28,717.56-39,660.45-25,586.70

Finding the Fourth Proportional to 28,717.56, 39,660.45 and 25,586.70

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Solution

The fourth proportional to 28,717.56, 39,660.45 and 25,586.70 is: 35,336.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.56 : 39,660.45 = 25,586.70 : x
  2. Step 2: Convert to fraction form
    28,717.56/39,660.45 = 25,586.70/x
  3. Step 3: Cross multiply
    28,717.56x = 39,660.45 × 25,586.70
  4. Step 4: Simplify right side
    28,717.56x = 1,014,780,036.02
  5. Step 5: Solve for x
    x = 1,014,780,036.02/28,717.56
  6. Step 6: Final answer
    x = 35,336.57

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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.