Home / 19,007.46-28,518.50-13,390.53

Finding the Fourth Proportional to 19,007.46, 28,518.50 and 13,390.53

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Solution

The fourth proportional to 19,007.46, 28,518.50 and 13,390.53 is: 20,090.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,007.46 : 28,518.50 = 13,390.53 : x
  2. Step 2: Convert to fraction form
    19,007.46/28,518.50 = 13,390.53/x
  3. Step 3: Cross multiply
    19,007.46x = 28,518.50 × 13,390.53
  4. Step 4: Simplify right side
    19,007.46x = 381,877,762.85
  5. Step 5: Solve for x
    x = 381,877,762.85/19,007.46
  6. Step 6: Final answer
    x = 20,090.94

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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.