Home / 30,871.80-42,603.84-17,443.35

Finding the Fourth Proportional to 30,871.80, 42,603.84 and 17,443.35

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Solution

The fourth proportional to 30,871.80, 42,603.84 and 17,443.35 is: 24,072.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,871.80 : 42,603.84 = 17,443.35 : x
  2. Step 2: Convert to fraction form
    30,871.80/42,603.84 = 17,443.35/x
  3. Step 3: Cross multiply
    30,871.80x = 42,603.84 × 17,443.35
  4. Step 4: Simplify right side
    30,871.80x = 743,153,692.46
  5. Step 5: Solve for x
    x = 743,153,692.46/30,871.80
  6. Step 6: Final answer
    x = 24,072.25

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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.