Home / 30,617.70-42,247.06-17,189.52

Finding the Fourth Proportional to 30,617.70, 42,247.06 and 17,189.52

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Solution

The fourth proportional to 30,617.70, 42,247.06 and 17,189.52 is: 23,718.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,617.70 : 42,247.06 = 17,189.52 : x
  2. Step 2: Convert to fraction form
    30,617.70/42,247.06 = 17,189.52/x
  3. Step 3: Cross multiply
    30,617.70x = 42,247.06 × 17,189.52
  4. Step 4: Simplify right side
    30,617.70x = 726,206,682.81
  5. Step 5: Solve for x
    x = 726,206,682.81/30,617.70
  6. Step 6: Final answer
    x = 23,718.52

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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.