Home / 30,288.47-45,439.90-9,511.97

Finding the Fourth Proportional to 30,288.47, 45,439.90 and 9,511.97

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Solution

The fourth proportional to 30,288.47, 45,439.90 and 9,511.97 is: 14,270.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,288.47 : 45,439.90 = 9,511.97 : x
  2. Step 2: Convert to fraction form
    30,288.47/45,439.90 = 9,511.97/x
  3. Step 3: Cross multiply
    30,288.47x = 45,439.90 × 9,511.97
  4. Step 4: Simplify right side
    30,288.47x = 432,223,055.42
  5. Step 5: Solve for x
    x = 432,223,055.42/30,288.47
  6. Step 6: Final answer
    x = 14,270.22

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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.