Home / 30,915.66-42,663.61-17,486.62

Finding the Fourth Proportional to 30,915.66, 42,663.61 and 17,486.62

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Solution

The fourth proportional to 30,915.66, 42,663.61 and 17,486.62 is: 24,131.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,915.66 : 42,663.61 = 17,486.62 : x
  2. Step 2: Convert to fraction form
    30,915.66/42,663.61 = 17,486.62/x
  3. Step 3: Cross multiply
    30,915.66x = 42,663.61 × 17,486.62
  4. Step 4: Simplify right side
    30,915.66x = 746,042,345.51
  5. Step 5: Solve for x
    x = 746,042,345.51/30,915.66
  6. Step 6: Final answer
    x = 24,131.54

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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.