Home / 43,020.90-64,520.55-15,312.42

Finding the Fourth Proportional to 43,020.90, 64,520.55 and 15,312.42

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Solution

The fourth proportional to 43,020.90, 64,520.55 and 15,312.42 is: 22,964.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,020.90 : 64,520.55 = 15,312.42 : x
  2. Step 2: Convert to fraction form
    43,020.90/64,520.55 = 15,312.42/x
  3. Step 3: Cross multiply
    43,020.90x = 64,520.55 × 15,312.42
  4. Step 4: Simplify right side
    43,020.90x = 987,965,760.23
  5. Step 5: Solve for x
    x = 987,965,760.23/43,020.90
  6. Step 6: Final answer
    x = 22,964.79

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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.