Home / 30,702.19-46,053.30-8,521.15

Finding the Fourth Proportional to 30,702.19, 46,053.30 and 8,521.15

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Solution

The fourth proportional to 30,702.19, 46,053.30 and 8,521.15 is: 12,781.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,702.19 : 46,053.30 = 8,521.15 : x
  2. Step 2: Convert to fraction form
    30,702.19/46,053.30 = 8,521.15/x
  3. Step 3: Cross multiply
    30,702.19x = 46,053.30 × 8,521.15
  4. Step 4: Simplify right side
    30,702.19x = 392,427,077.30
  5. Step 5: Solve for x
    x = 392,427,077.30/30,702.19
  6. Step 6: Final answer
    x = 12,781.73

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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.