Home / 31,421.81-43,362.38-17,081.67

Finding the Fourth Proportional to 31,421.81, 43,362.38 and 17,081.67

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Solution

The fourth proportional to 31,421.81, 43,362.38 and 17,081.67 is: 23,572.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421.81 : 43,362.38 = 17,081.67 : x
  2. Step 2: Convert to fraction form
    31,421.81/43,362.38 = 17,081.67/x
  3. Step 3: Cross multiply
    31,421.81x = 43,362.38 × 17,081.67
  4. Step 4: Simplify right side
    31,421.81x = 740,701,865.57
  5. Step 5: Solve for x
    x = 740,701,865.57/31,421.81
  6. Step 6: Final answer
    x = 23,572.86

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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.