Home / 19,154.33-28,706.60-10,720.49

Finding the Fourth Proportional to 19,154.33, 28,706.60 and 10,720.49

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Solution

The fourth proportional to 19,154.33, 28,706.60 and 10,720.49 is: 16,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,154.33 : 28,706.60 = 10,720.49 : x
  2. Step 2: Convert to fraction form
    19,154.33/28,706.60 = 10,720.49/x
  3. Step 3: Cross multiply
    19,154.33x = 28,706.60 × 10,720.49
  4. Step 4: Simplify right side
    19,154.33x = 307,748,818.23
  5. Step 5: Solve for x
    x = 307,748,818.23/19,154.33
  6. Step 6: Final answer
    x = 16,066.80

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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.