Home / 20,655.87-30,966.55-9,570.52

Finding the Fourth Proportional to 20,655.87, 30,966.55 and 9,570.52

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Solution

The fourth proportional to 20,655.87, 30,966.55 and 9,570.52 is: 14,347.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,655.87 : 30,966.55 = 9,570.52 : x
  2. Step 2: Convert to fraction form
    20,655.87/30,966.55 = 9,570.52/x
  3. Step 3: Cross multiply
    20,655.87x = 30,966.55 × 9,570.52
  4. Step 4: Simplify right side
    20,655.87x = 296,365,924.08
  5. Step 5: Solve for x
    x = 296,365,924.08/20,655.87
  6. Step 6: Final answer
    x = 14,347.78

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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.