Home / 30,474.68-42,055.38-17,899.64

Finding the Fourth Proportional to 30,474.68, 42,055.38 and 17,899.64

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Solution

The fourth proportional to 30,474.68, 42,055.38 and 17,899.64 is: 24,701.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,474.68 : 42,055.38 = 17,899.64 : x
  2. Step 2: Convert to fraction form
    30,474.68/42,055.38 = 17,899.64/x
  3. Step 3: Cross multiply
    30,474.68x = 42,055.38 × 17,899.64
  4. Step 4: Simplify right side
    30,474.68x = 752,776,162.06
  5. Step 5: Solve for x
    x = 752,776,162.06/30,474.68
  6. Step 6: Final answer
    x = 24,701.69

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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.