Home / 30,693.80-42,357.45-17,265.06

Finding the Fourth Proportional to 30,693.80, 42,357.45 and 17,265.06

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Solution

The fourth proportional to 30,693.80, 42,357.45 and 17,265.06 is: 23,825.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,693.80 : 42,357.45 = 17,265.06 : x
  2. Step 2: Convert to fraction form
    30,693.80/42,357.45 = 17,265.06/x
  3. Step 3: Cross multiply
    30,693.80x = 42,357.45 × 17,265.06
  4. Step 4: Simplify right side
    30,693.80x = 731,303,915.70
  5. Step 5: Solve for x
    x = 731,303,915.70/30,693.80
  6. Step 6: Final answer
    x = 23,825.79

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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.