Home / 30,016.92-45,021.72-12,484.46

Finding the Fourth Proportional to 30,016.92, 45,021.72 and 12,484.46

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Solution

The fourth proportional to 30,016.92, 45,021.72 and 12,484.46 is: 18,725.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,016.92 : 45,021.72 = 12,484.46 : x
  2. Step 2: Convert to fraction form
    30,016.92/45,021.72 = 12,484.46/x
  3. Step 3: Cross multiply
    30,016.92x = 45,021.72 × 12,484.46
  4. Step 4: Simplify right side
    30,016.92x = 562,071,862.47
  5. Step 5: Solve for x
    x = 562,071,862.47/30,016.92
  6. Step 6: Final answer
    x = 18,725.17

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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.