Home / 30,839.36-42,555.12-17,411.36

Finding the Fourth Proportional to 30,839.36, 42,555.12 and 17,411.36

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Solution

The fourth proportional to 30,839.36, 42,555.12 and 17,411.36 is: 24,025.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,839.36 : 42,555.12 = 17,411.36 : x
  2. Step 2: Convert to fraction form
    30,839.36/42,555.12 = 17,411.36/x
  3. Step 3: Cross multiply
    30,839.36x = 42,555.12 × 17,411.36
  4. Step 4: Simplify right side
    30,839.36x = 740,942,514.16
  5. Step 5: Solve for x
    x = 740,942,514.16/30,839.36
  6. Step 6: Final answer
    x = 24,025.87

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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.