Home / 31,357.04-43,272.68-17,209.92

Finding the Fourth Proportional to 31,357.04, 43,272.68 and 17,209.92

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Solution

The fourth proportional to 31,357.04, 43,272.68 and 17,209.92 is: 23,749.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,357.04 : 43,272.68 = 17,209.92 : x
  2. Step 2: Convert to fraction form
    31,357.04/43,272.68 = 17,209.92/x
  3. Step 3: Cross multiply
    31,357.04x = 43,272.68 × 17,209.92
  4. Step 4: Simplify right side
    31,357.04x = 744,719,360.99
  5. Step 5: Solve for x
    x = 744,719,360.99/31,357.04
  6. Step 6: Final answer
    x = 23,749.67

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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.