Home / 19,277.40-28,889.10-15,335.40

Finding the Fourth Proportional to 19,277.40, 28,889.10 and 15,335.40

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Solution

The fourth proportional to 19,277.40, 28,889.10 and 15,335.40 is: 22,981.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,277.40 : 28,889.10 = 15,335.40 : x
  2. Step 2: Convert to fraction form
    19,277.40/28,889.10 = 15,335.40/x
  3. Step 3: Cross multiply
    19,277.40x = 28,889.10 × 15,335.40
  4. Step 4: Simplify right side
    19,277.40x = 443,025,904.14
  5. Step 5: Solve for x
    x = 443,025,904.14/19,277.40
  6. Step 6: Final answer
    x = 22,981.62

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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.