Home / 57,816.28-86,730.20-15,697

Finding the Fourth Proportional to 57,816.28, 86,730.20 and 15,697

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Solution

The fourth proportional to 57,816.28, 86,730.20 and 15,697 is: 23,547.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,816.28 : 86,730.20 = 15,697 : x
  2. Step 2: Convert to fraction form
    57,816.28/86,730.20 = 15,697/x
  3. Step 3: Cross multiply
    57,816.28x = 86,730.20 × 15,697
  4. Step 4: Simplify right side
    57,816.28x = 1,361,403,949.40
  5. Step 5: Solve for x
    x = 1,361,403,949.40/57,816.28
  6. Step 6: Final answer
    x = 23,547.07

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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.