Home / 30,258.45-45,389.82-8,071.71

Finding the Fourth Proportional to 30,258.45, 45,389.82 and 8,071.71

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Solution

The fourth proportional to 30,258.45, 45,389.82 and 8,071.71 is: 12,108.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,258.45 : 45,389.82 = 8,071.71 : x
  2. Step 2: Convert to fraction form
    30,258.45/45,389.82 = 8,071.71/x
  3. Step 3: Cross multiply
    30,258.45x = 45,389.82 × 8,071.71
  4. Step 4: Simplify right side
    30,258.45x = 366,373,463.99
  5. Step 5: Solve for x
    x = 366,373,463.99/30,258.45
  6. Step 6: Final answer
    x = 12,108.14

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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.