Home / 30,702.20-46,053.30-10,981.40

Finding the Fourth Proportional to 30,702.20, 46,053.30 and 10,981.40

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Solution

The fourth proportional to 30,702.20, 46,053.30 and 10,981.40 is: 16,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,702.20 : 46,053.30 = 10,981.40 : x
  2. Step 2: Convert to fraction form
    30,702.20/46,053.30 = 10,981.40/x
  3. Step 3: Cross multiply
    30,702.20x = 46,053.30 × 10,981.40
  4. Step 4: Simplify right side
    30,702.20x = 505,729,708.62
  5. Step 5: Solve for x
    x = 505,729,708.62/30,702.20
  6. Step 6: Final answer
    x = 16,472.10

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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.