Home / 30,288.10-45,441.45-15,507.39

Finding the Fourth Proportional to 30,288.10, 45,441.45 and 15,507.39

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Solution

The fourth proportional to 30,288.10, 45,441.45 and 15,507.39 is: 23,265.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,288.10 : 45,441.45 = 15,507.39 : x
  2. Step 2: Convert to fraction form
    30,288.10/45,441.45 = 15,507.39/x
  3. Step 3: Cross multiply
    30,288.10x = 45,441.45 × 15,507.39
  4. Step 4: Simplify right side
    30,288.10x = 704,678,287.32
  5. Step 5: Solve for x
    x = 704,678,287.32/30,288.10
  6. Step 6: Final answer
    x = 23,265.85

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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.