Home / 31,465.68-43,421.81-17,125.79

Finding the Fourth Proportional to 31,465.68, 43,421.81 and 17,125.79

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Solution

The fourth proportional to 31,465.68, 43,421.81 and 17,125.79 is: 23,633.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,465.68 : 43,421.81 = 17,125.79 : x
  2. Step 2: Convert to fraction form
    31,465.68/43,421.81 = 17,125.79/x
  3. Step 3: Cross multiply
    31,465.68x = 43,421.81 × 17,125.79
  4. Step 4: Simplify right side
    31,465.68x = 743,632,799.48
  5. Step 5: Solve for x
    x = 743,632,799.48/31,465.68
  6. Step 6: Final answer
    x = 23,633.14

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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.