Home / 30,670.27-42,325.37-17,240.74

Finding the Fourth Proportional to 30,670.27, 42,325.37 and 17,240.74

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Solution

The fourth proportional to 30,670.27, 42,325.37 and 17,240.74 is: 23,792.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,670.27 : 42,325.37 = 17,240.74 : x
  2. Step 2: Convert to fraction form
    30,670.27/42,325.37 = 17,240.74/x
  3. Step 3: Cross multiply
    30,670.27x = 42,325.37 × 17,240.74
  4. Step 4: Simplify right side
    30,670.27x = 729,720,699.57
  5. Step 5: Solve for x
    x = 729,720,699.57/30,670.27
  6. Step 6: Final answer
    x = 23,792.44

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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.