Home / 30,920.86-42,673.38-17,494.51

Finding the Fourth Proportional to 30,920.86, 42,673.38 and 17,494.51

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Solution

The fourth proportional to 30,920.86, 42,673.38 and 17,494.51 is: 24,143.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,920.86 : 42,673.38 = 17,494.51 : x
  2. Step 2: Convert to fraction form
    30,920.86/42,673.38 = 17,494.51/x
  3. Step 3: Cross multiply
    30,920.86x = 42,673.38 × 17,494.51
  4. Step 4: Simplify right side
    30,920.86x = 746,549,873.14
  5. Step 5: Solve for x
    x = 746,549,873.14/30,920.86
  6. Step 6: Final answer
    x = 24,143.89

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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.