Home / 30,474.20-42,055.74-17,045.42

Finding the Fourth Proportional to 30,474.20, 42,055.74 and 17,045.42

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Solution

The fourth proportional to 30,474.20, 42,055.74 and 17,045.42 is: 23,523.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,474.20 : 42,055.74 = 17,045.42 : x
  2. Step 2: Convert to fraction form
    30,474.20/42,055.74 = 17,045.42/x
  3. Step 3: Cross multiply
    30,474.20x = 42,055.74 × 17,045.42
  4. Step 4: Simplify right side
    30,474.20x = 716,857,751.71
  5. Step 5: Solve for x
    x = 716,857,751.71/30,474.20
  6. Step 6: Final answer
    x = 23,523.43

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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.