Home / 30,555.16-42,165.73-17,126.39

Finding the Fourth Proportional to 30,555.16, 42,165.73 and 17,126.39

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Solution

The fourth proportional to 30,555.16, 42,165.73 and 17,126.39 is: 23,634.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,555.16 : 42,165.73 = 17,126.39 : x
  2. Step 2: Convert to fraction form
    30,555.16/42,165.73 = 17,126.39/x
  3. Step 3: Cross multiply
    30,555.16x = 42,165.73 × 17,126.39
  4. Step 4: Simplify right side
    30,555.16x = 722,146,736.61
  5. Step 5: Solve for x
    x = 722,146,736.61/30,555.16
  6. Step 6: Final answer
    x = 23,634.20

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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.