Home / 19,154.93-28,731.65-5,114.93

Finding the Fourth Proportional to 19,154.93, 28,731.65 and 5,114.93

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Solution

The fourth proportional to 19,154.93, 28,731.65 and 5,114.93 is: 7,672.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,154.93 : 28,731.65 = 5,114.93 : x
  2. Step 2: Convert to fraction form
    19,154.93/28,731.65 = 5,114.93/x
  3. Step 3: Cross multiply
    19,154.93x = 28,731.65 × 5,114.93
  4. Step 4: Simplify right side
    19,154.93x = 146,960,209.30
  5. Step 5: Solve for x
    x = 146,960,209.30/19,154.93
  6. Step 6: Final answer
    x = 7,672.19

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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.