Home / 47,045.72-70,590.14-20,399.88

Finding the Fourth Proportional to 47,045.72, 70,590.14 and 20,399.88

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Solution

The fourth proportional to 47,045.72, 70,590.14 and 20,399.88 is: 30,609.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,045.72 : 70,590.14 = 20,399.88 : x
  2. Step 2: Convert to fraction form
    47,045.72/70,590.14 = 20,399.88/x
  3. Step 3: Cross multiply
    47,045.72x = 70,590.14 × 20,399.88
  4. Step 4: Simplify right side
    47,045.72x = 1,440,030,385.18
  5. Step 5: Solve for x
    x = 1,440,030,385.18/47,045.72
  6. Step 6: Final answer
    x = 30,609.17

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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.