Home / 30,989.68-42,763.98-16,842.41

Finding the Fourth Proportional to 30,989.68, 42,763.98 and 16,842.41

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Solution

The fourth proportional to 30,989.68, 42,763.98 and 16,842.41 is: 23,241.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,989.68 : 42,763.98 = 16,842.41 : x
  2. Step 2: Convert to fraction form
    30,989.68/42,763.98 = 16,842.41/x
  3. Step 3: Cross multiply
    30,989.68x = 42,763.98 × 16,842.41
  4. Step 4: Simplify right side
    30,989.68x = 720,248,484.39
  5. Step 5: Solve for x
    x = 720,248,484.39/30,989.68
  6. Step 6: Final answer
    x = 23,241.56

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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.