Home / 30,532.40-42,129.60-17,787.68

Finding the Fourth Proportional to 30,532.40, 42,129.60 and 17,787.68

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Solution

The fourth proportional to 30,532.40, 42,129.60 and 17,787.68 is: 24,544.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,532.40 : 42,129.60 = 17,787.68 : x
  2. Step 2: Convert to fraction form
    30,532.40/42,129.60 = 17,787.68/x
  3. Step 3: Cross multiply
    30,532.40x = 42,129.60 × 17,787.68
  4. Step 4: Simplify right side
    30,532.40x = 749,387,843.33
  5. Step 5: Solve for x
    x = 749,387,843.33/30,532.40
  6. Step 6: Final answer
    x = 24,544.02

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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.