Home / 30,543.06-42,148.71-17,968.62

Finding the Fourth Proportional to 30,543.06, 42,148.71 and 17,968.62

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Solution

The fourth proportional to 30,543.06, 42,148.71 and 17,968.62 is: 24,796.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,543.06 : 42,148.71 = 17,968.62 : x
  2. Step 2: Convert to fraction form
    30,543.06/42,148.71 = 17,968.62/x
  3. Step 3: Cross multiply
    30,543.06x = 42,148.71 × 17,968.62
  4. Step 4: Simplify right side
    30,543.06x = 757,354,153.48
  5. Step 5: Solve for x
    x = 757,354,153.48/30,543.06
  6. Step 6: Final answer
    x = 24,796.28

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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.