Home / 30,440.31-42,006.40-17,692.88

Finding the Fourth Proportional to 30,440.31, 42,006.40 and 17,692.88

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Solution

The fourth proportional to 30,440.31, 42,006.40 and 17,692.88 is: 24,415.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,440.31 : 42,006.40 = 17,692.88 : x
  2. Step 2: Convert to fraction form
    30,440.31/42,006.40 = 17,692.88/x
  3. Step 3: Cross multiply
    30,440.31x = 42,006.40 × 17,692.88
  4. Step 4: Simplify right side
    30,440.31x = 743,214,176.45
  5. Step 5: Solve for x
    x = 743,214,176.45/30,440.31
  6. Step 6: Final answer
    x = 24,415.46

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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.