Home / 30,246.60-45,377.10-12,707.40

Finding the Fourth Proportional to 30,246.60, 45,377.10 and 12,707.40

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Solution

The fourth proportional to 30,246.60, 45,377.10 and 12,707.40 is: 19,064.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,246.60 : 45,377.10 = 12,707.40 : x
  2. Step 2: Convert to fraction form
    30,246.60/45,377.10 = 12,707.40/x
  3. Step 3: Cross multiply
    30,246.60x = 45,377.10 × 12,707.40
  4. Step 4: Simplify right side
    30,246.60x = 576,624,960.54
  5. Step 5: Solve for x
    x = 576,624,960.54/30,246.60
  6. Step 6: Final answer
    x = 19,064.12

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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.