Home / 30,883.06-42,618-17,458.66

Finding the Fourth Proportional to 30,883.06, 42,618 and 17,458.66

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Solution

The fourth proportional to 30,883.06, 42,618 and 17,458.66 is: 24,092.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,883.06 : 42,618 = 17,458.66 : x
  2. Step 2: Convert to fraction form
    30,883.06/42,618 = 17,458.66/x
  3. Step 3: Cross multiply
    30,883.06x = 42,618 × 17,458.66
  4. Step 4: Simplify right side
    30,883.06x = 744,053,171.88
  5. Step 5: Solve for x
    x = 744,053,171.88/30,883.06
  6. Step 6: Final answer
    x = 24,092.60

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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.