Home / 30,546.24-45,776.16-12,998.40

Finding the Fourth Proportional to 30,546.24, 45,776.16 and 12,998.40

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Solution

The fourth proportional to 30,546.24, 45,776.16 and 12,998.40 is: 19,479.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,546.24 : 45,776.16 = 12,998.40 : x
  2. Step 2: Convert to fraction form
    30,546.24/45,776.16 = 12,998.40/x
  3. Step 3: Cross multiply
    30,546.24x = 45,776.16 × 12,998.40
  4. Step 4: Simplify right side
    30,546.24x = 595,016,838.14
  5. Step 5: Solve for x
    x = 595,016,838.14/30,546.24
  6. Step 6: Final answer
    x = 19,479.22

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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.