Home / 30,560.13-45,744.27-21,016.76

Finding the Fourth Proportional to 30,560.13, 45,744.27 and 21,016.76

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Solution

The fourth proportional to 30,560.13, 45,744.27 and 21,016.76 is: 31,459.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,560.13 : 45,744.27 = 21,016.76 : x
  2. Step 2: Convert to fraction form
    30,560.13/45,744.27 = 21,016.76/x
  3. Step 3: Cross multiply
    30,560.13x = 45,744.27 × 21,016.76
  4. Step 4: Simplify right side
    30,560.13x = 961,396,115.24
  5. Step 5: Solve for x
    x = 961,396,115.24/30,560.13
  6. Step 6: Final answer
    x = 31,459.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.