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Finding the Fourth Proportional to 30,863.58, 46,290.62 and 9,800.87

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Solution

The fourth proportional to 30,863.58, 46,290.62 and 9,800.87 is: 14,699.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,863.58 : 46,290.62 = 9,800.87 : x
  2. Step 2: Convert to fraction form
    30,863.58/46,290.62 = 9,800.87/x
  3. Step 3: Cross multiply
    30,863.58x = 46,290.62 × 9,800.87
  4. Step 4: Simplify right side
    30,863.58x = 453,688,068.38
  5. Step 5: Solve for x
    x = 453,688,068.38/30,863.58
  6. Step 6: Final answer
    x = 14,699.79

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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.