Home / 30,438.04-42,008.67-17,517.05

Finding the Fourth Proportional to 30,438.04, 42,008.67 and 17,517.05

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Solution

The fourth proportional to 30,438.04, 42,008.67 and 17,517.05 is: 24,175.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,438.04 : 42,008.67 = 17,517.05 : x
  2. Step 2: Convert to fraction form
    30,438.04/42,008.67 = 17,517.05/x
  3. Step 3: Cross multiply
    30,438.04x = 42,008.67 × 17,517.05
  4. Step 4: Simplify right side
    30,438.04x = 735,867,972.82
  5. Step 5: Solve for x
    x = 735,867,972.82/30,438.04
  6. Step 6: Final answer
    x = 24,175.93

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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.