Home / 30,840.90-42,560.28-17,412.45

Finding the Fourth Proportional to 30,840.90, 42,560.28 and 17,412.45

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Solution

The fourth proportional to 30,840.90, 42,560.28 and 17,412.45 is: 24,029.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,840.90 : 42,560.28 = 17,412.45 : x
  2. Step 2: Convert to fraction form
    30,840.90/42,560.28 = 17,412.45/x
  3. Step 3: Cross multiply
    30,840.90x = 42,560.28 × 17,412.45
  4. Step 4: Simplify right side
    30,840.90x = 741,078,747.49
  5. Step 5: Solve for x
    x = 741,078,747.49/30,840.90
  6. Step 6: Final answer
    x = 24,029.09

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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.