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Finding the Fourth Proportional to 30,267.72, 45,410.84 and 15,487.14

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Solution

The fourth proportional to 30,267.72, 45,410.84 and 15,487.14 is: 23,235.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,267.72 : 45,410.84 = 15,487.14 : x
  2. Step 2: Convert to fraction form
    30,267.72/45,410.84 = 15,487.14/x
  3. Step 3: Cross multiply
    30,267.72x = 45,410.84 × 15,487.14
  4. Step 4: Simplify right side
    30,267.72x = 703,284,075.32
  5. Step 5: Solve for x
    x = 703,284,075.32/30,267.72
  6. Step 6: Final answer
    x = 23,235.45

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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.