Home / 19,605.49-29,391.70-8,503.81

Finding the Fourth Proportional to 19,605.49, 29,391.70 and 8,503.81

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Solution

The fourth proportional to 19,605.49, 29,391.70 and 8,503.81 is: 12,748.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.49 : 29,391.70 = 8,503.81 : x
  2. Step 2: Convert to fraction form
    19,605.49/29,391.70 = 8,503.81/x
  3. Step 3: Cross multiply
    19,605.49x = 29,391.70 × 8,503.81
  4. Step 4: Simplify right side
    19,605.49x = 249,941,432.38
  5. Step 5: Solve for x
    x = 249,941,432.38/19,605.49
  6. Step 6: Final answer
    x = 12,748.54

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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.