Home / 30,439.70-42,001.44-17,006.66

Finding the Fourth Proportional to 30,439.70, 42,001.44 and 17,006.66

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Solution

The fourth proportional to 30,439.70, 42,001.44 and 17,006.66 is: 23,466.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,439.70 : 42,001.44 = 17,006.66 : x
  2. Step 2: Convert to fraction form
    30,439.70/42,001.44 = 17,006.66/x
  3. Step 3: Cross multiply
    30,439.70x = 42,001.44 × 17,006.66
  4. Step 4: Simplify right side
    30,439.70x = 714,304,209.59
  5. Step 5: Solve for x
    x = 714,304,209.59/30,439.70
  6. Step 6: Final answer
    x = 23,466.20

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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.