Home / 30,455.20-45,682.26-15,655.42

Finding the Fourth Proportional to 30,455.20, 45,682.26 and 15,655.42

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Solution

The fourth proportional to 30,455.20, 45,682.26 and 15,655.42 is: 23,482.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,455.20 : 45,682.26 = 15,655.42 : x
  2. Step 2: Convert to fraction form
    30,455.20/45,682.26 = 15,655.42/x
  3. Step 3: Cross multiply
    30,455.20x = 45,682.26 × 15,655.42
  4. Step 4: Simplify right side
    30,455.20x = 715,174,966.85
  5. Step 5: Solve for x
    x = 715,174,966.85/30,455.20
  6. Step 6: Final answer
    x = 23,482.85

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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.