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Finding the Fourth Proportional to 30,241.32, 45,328.98 and 10,509.32

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Solution

The fourth proportional to 30,241.32, 45,328.98 and 10,509.32 is: 15,752.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,241.32 : 45,328.98 = 10,509.32 : x
  2. Step 2: Convert to fraction form
    30,241.32/45,328.98 = 10,509.32/x
  3. Step 3: Cross multiply
    30,241.32x = 45,328.98 × 10,509.32
  4. Step 4: Simplify right side
    30,241.32x = 476,376,756.09
  5. Step 5: Solve for x
    x = 476,376,756.09/30,241.32
  6. Step 6: Final answer
    x = 15,752.51

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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.