Home / 19,200.78-28,827.90-15,254.46

Finding the Fourth Proportional to 19,200.78, 28,827.90 and 15,254.46

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Solution

The fourth proportional to 19,200.78, 28,827.90 and 15,254.46 is: 22,902.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200.78 : 28,827.90 = 15,254.46 : x
  2. Step 2: Convert to fraction form
    19,200.78/28,827.90 = 15,254.46/x
  3. Step 3: Cross multiply
    19,200.78x = 28,827.90 × 15,254.46
  4. Step 4: Simplify right side
    19,200.78x = 439,754,047.43
  5. Step 5: Solve for x
    x = 439,754,047.43/19,200.78
  6. Step 6: Final answer
    x = 22,902.93

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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.