Home / 30,891.55-42,616.77-23,708.79

Finding the Fourth Proportional to 30,891.55, 42,616.77 and 23,708.79

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Solution

The fourth proportional to 30,891.55, 42,616.77 and 23,708.79 is: 32,707.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,891.55 : 42,616.77 = 23,708.79 : x
  2. Step 2: Convert to fraction form
    30,891.55/42,616.77 = 23,708.79/x
  3. Step 3: Cross multiply
    30,891.55x = 42,616.77 × 23,708.79
  4. Step 4: Simplify right side
    30,891.55x = 1,010,392,001.59
  5. Step 5: Solve for x
    x = 1,010,392,001.59/30,891.55
  6. Step 6: Final answer
    x = 32,707.72

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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.