Home / 30,911.85-42,659.12-17,482.46

Finding the Fourth Proportional to 30,911.85, 42,659.12 and 17,482.46

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Solution

The fourth proportional to 30,911.85, 42,659.12 and 17,482.46 is: 24,126.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,911.85 : 42,659.12 = 17,482.46 : x
  2. Step 2: Convert to fraction form
    30,911.85/42,659.12 = 17,482.46/x
  3. Step 3: Cross multiply
    30,911.85x = 42,659.12 × 17,482.46
  4. Step 4: Simplify right side
    30,911.85x = 745,786,189.45
  5. Step 5: Solve for x
    x = 745,786,189.45/30,911.85
  6. Step 6: Final answer
    x = 24,126.22

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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.