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Finding the Fourth Proportional to 30,805.88, 46,210.02 and 13,935.74

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Solution

The fourth proportional to 30,805.88, 46,210.02 and 13,935.74 is: 20,904.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,805.88 : 46,210.02 = 13,935.74 : x
  2. Step 2: Convert to fraction form
    30,805.88/46,210.02 = 13,935.74/x
  3. Step 3: Cross multiply
    30,805.88x = 46,210.02 × 13,935.74
  4. Step 4: Simplify right side
    30,805.88x = 643,970,824.11
  5. Step 5: Solve for x
    x = 643,970,824.11/30,805.88
  6. Step 6: Final answer
    x = 20,904.15

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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.