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Finding the Fourth Proportional to 30,964.76, 46,447.76 and 9,908.80

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Solution

The fourth proportional to 30,964.76, 46,447.76 and 9,908.80 is: 14,863.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,964.76 : 46,447.76 = 9,908.80 : x
  2. Step 2: Convert to fraction form
    30,964.76/46,447.76 = 9,908.80/x
  3. Step 3: Cross multiply
    30,964.76x = 46,447.76 × 9,908.80
  4. Step 4: Simplify right side
    30,964.76x = 460,241,564.29
  5. Step 5: Solve for x
    x = 460,241,564.29/30,964.76
  6. Step 6: Final answer
    x = 14,863.40

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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.