Home / 30,135.12-41,588.49-17,390.58

Finding the Fourth Proportional to 30,135.12, 41,588.49 and 17,390.58

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Solution

The fourth proportional to 30,135.12, 41,588.49 and 17,390.58 is: 24,000.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,135.12 : 41,588.49 = 17,390.58 : x
  2. Step 2: Convert to fraction form
    30,135.12/41,588.49 = 17,390.58/x
  3. Step 3: Cross multiply
    30,135.12x = 41,588.49 × 17,390.58
  4. Step 4: Simplify right side
    30,135.12x = 723,247,962.42
  5. Step 5: Solve for x
    x = 723,247,962.42/30,135.12
  6. Step 6: Final answer
    x = 24,000.17

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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.