Home / 30,655.27-42,305.03-17,225.72

Finding the Fourth Proportional to 30,655.27, 42,305.03 and 17,225.72

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Solution

The fourth proportional to 30,655.27, 42,305.03 and 17,225.72 is: 23,771.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,655.27 : 42,305.03 = 17,225.72 : x
  2. Step 2: Convert to fraction form
    30,655.27/42,305.03 = 17,225.72/x
  3. Step 3: Cross multiply
    30,655.27x = 42,305.03 × 17,225.72
  4. Step 4: Simplify right side
    30,655.27x = 728,734,515.24
  5. Step 5: Solve for x
    x = 728,734,515.24/30,655.27
  6. Step 6: Final answer
    x = 23,771.92

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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.