Home / 30,542.31-42,127.83-17,967.06

Finding the Fourth Proportional to 30,542.31, 42,127.83 and 17,967.06

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Solution

The fourth proportional to 30,542.31, 42,127.83 and 17,967.06 is: 24,782.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,542.31 : 42,127.83 = 17,967.06 : x
  2. Step 2: Convert to fraction form
    30,542.31/42,127.83 = 17,967.06/x
  3. Step 3: Cross multiply
    30,542.31x = 42,127.83 × 17,967.06
  4. Step 4: Simplify right side
    30,542.31x = 756,913,249.28
  5. Step 5: Solve for x
    x = 756,913,249.28/30,542.31
  6. Step 6: Final answer
    x = 24,782.45

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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.