Home / 30,544.29-42,153.71-17,115.35

Finding the Fourth Proportional to 30,544.29, 42,153.71 and 17,115.35

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Solution

The fourth proportional to 30,544.29, 42,153.71 and 17,115.35 is: 23,620.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,544.29 : 42,153.71 = 17,115.35 : x
  2. Step 2: Convert to fraction form
    30,544.29/42,153.71 = 17,115.35/x
  3. Step 3: Cross multiply
    30,544.29x = 42,153.71 × 17,115.35
  4. Step 4: Simplify right side
    30,544.29x = 721,475,204.10
  5. Step 5: Solve for x
    x = 721,475,204.10/30,544.29
  6. Step 6: Final answer
    x = 23,620.62

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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.