Home / 30,622.37-42,248.30-17,191.76

Finding the Fourth Proportional to 30,622.37, 42,248.30 and 17,191.76

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Solution

The fourth proportional to 30,622.37, 42,248.30 and 17,191.76 is: 23,718.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,622.37 : 42,248.30 = 17,191.76 : x
  2. Step 2: Convert to fraction form
    30,622.37/42,248.30 = 17,191.76/x
  3. Step 3: Cross multiply
    30,622.37x = 42,248.30 × 17,191.76
  4. Step 4: Simplify right side
    30,622.37x = 726,322,336.81
  5. Step 5: Solve for x
    x = 726,322,336.81/30,622.37
  6. Step 6: Final answer
    x = 23,718.69

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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.