Home / 19,000.45-28,501.17-6,520.42

Finding the Fourth Proportional to 19,000.45, 28,501.17 and 6,520.42

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Solution

The fourth proportional to 19,000.45, 28,501.17 and 6,520.42 is: 9,780.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,000.45 : 28,501.17 = 6,520.42 : x
  2. Step 2: Convert to fraction form
    19,000.45/28,501.17 = 6,520.42/x
  3. Step 3: Cross multiply
    19,000.45x = 28,501.17 × 6,520.42
  4. Step 4: Simplify right side
    19,000.45x = 185,839,598.89
  5. Step 5: Solve for x
    x = 185,839,598.89/19,000.45
  6. Step 6: Final answer
    x = 9,780.80

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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.