Home / 30,525.68-42,125.57-17,787.60

Finding the Fourth Proportional to 30,525.68, 42,125.57 and 17,787.60

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Solution

The fourth proportional to 30,525.68, 42,125.57 and 17,787.60 is: 24,546.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,525.68 : 42,125.57 = 17,787.60 : x
  2. Step 2: Convert to fraction form
    30,525.68/42,125.57 = 17,787.60/x
  3. Step 3: Cross multiply
    30,525.68x = 42,125.57 × 17,787.60
  4. Step 4: Simplify right side
    30,525.68x = 749,312,800.92
  5. Step 5: Solve for x
    x = 749,312,800.92/30,525.68
  6. Step 6: Final answer
    x = 24,546.97

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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.