Home / 31,718.55-43,768.40-17,568.75

Finding the Fourth Proportional to 31,718.55, 43,768.40 and 17,568.75

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Solution

The fourth proportional to 31,718.55, 43,768.40 and 17,568.75 is: 24,243.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,718.55 : 43,768.40 = 17,568.75 : x
  2. Step 2: Convert to fraction form
    31,718.55/43,768.40 = 17,568.75/x
  3. Step 3: Cross multiply
    31,718.55x = 43,768.40 × 17,568.75
  4. Step 4: Simplify right side
    31,718.55x = 768,956,077.50
  5. Step 5: Solve for x
    x = 768,956,077.50/31,718.55
  6. Step 6: Final answer
    x = 24,243.10

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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.