Home / 30,634.76-42,275.16-17,205.36

Finding the Fourth Proportional to 30,634.76, 42,275.16 and 17,205.36

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Solution

The fourth proportional to 30,634.76, 42,275.16 and 17,205.36 is: 23,742.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,634.76 : 42,275.16 = 17,205.36 : x
  2. Step 2: Convert to fraction form
    30,634.76/42,275.16 = 17,205.36/x
  3. Step 3: Cross multiply
    30,634.76x = 42,275.16 × 17,205.36
  4. Step 4: Simplify right side
    30,634.76x = 727,359,346.86
  5. Step 5: Solve for x
    x = 727,359,346.86/30,634.76
  6. Step 6: Final answer
    x = 23,742.95

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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.