Home / 30,528.72-45,812.52-12,998.52

Finding the Fourth Proportional to 30,528.72, 45,812.52 and 12,998.52

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Solution

The fourth proportional to 30,528.72, 45,812.52 and 12,998.52 is: 19,506.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,528.72 : 45,812.52 = 12,998.52 : x
  2. Step 2: Convert to fraction form
    30,528.72/45,812.52 = 12,998.52/x
  3. Step 3: Cross multiply
    30,528.72x = 45,812.52 × 12,998.52
  4. Step 4: Simplify right side
    30,528.72x = 595,494,957.47
  5. Step 5: Solve for x
    x = 595,494,957.47/30,528.72
  6. Step 6: Final answer
    x = 19,506.06

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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.