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Finding the Fourth Proportional to 30,435.97, 45,656.25 and 9,087

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Solution

The fourth proportional to 30,435.97, 45,656.25 and 9,087 is: 13,631.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,435.97 : 45,656.25 = 9,087 : x
  2. Step 2: Convert to fraction form
    30,435.97/45,656.25 = 9,087/x
  3. Step 3: Cross multiply
    30,435.97x = 45,656.25 × 9,087
  4. Step 4: Simplify right side
    30,435.97x = 414,878,343.75
  5. Step 5: Solve for x
    x = 414,878,343.75/30,435.97
  6. Step 6: Final answer
    x = 13,631.19

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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.