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Finding the Fourth Proportional to 30,827.16, 46,248.57 and 8,640.63

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Solution

The fourth proportional to 30,827.16, 46,248.57 and 8,640.63 is: 12,963.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,827.16 : 46,248.57 = 8,640.63 : x
  2. Step 2: Convert to fraction form
    30,827.16/46,248.57 = 8,640.63/x
  3. Step 3: Cross multiply
    30,827.16x = 46,248.57 × 8,640.63
  4. Step 4: Simplify right side
    30,827.16x = 399,616,781.40
  5. Step 5: Solve for x
    x = 399,616,781.40/30,827.16
  6. Step 6: Final answer
    x = 12,963.14

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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.