Home / 30,612.74-42,240.57-18,035.78

Finding the Fourth Proportional to 30,612.74, 42,240.57 and 18,035.78

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Solution

The fourth proportional to 30,612.74, 42,240.57 and 18,035.78 is: 24,886.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,612.74 : 42,240.57 = 18,035.78 : x
  2. Step 2: Convert to fraction form
    30,612.74/42,240.57 = 18,035.78/x
  3. Step 3: Cross multiply
    30,612.74x = 42,240.57 × 18,035.78
  4. Step 4: Simplify right side
    30,612.74x = 761,841,627.59
  5. Step 5: Solve for x
    x = 761,841,627.59/30,612.74
  6. Step 6: Final answer
    x = 24,886.42

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.