Home / 19,860.42-29,798.34-8,759.28

Finding the Fourth Proportional to 19,860.42, 29,798.34 and 8,759.28

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Solution

The fourth proportional to 19,860.42, 29,798.34 and 8,759.28 is: 13,142.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.42 : 29,798.34 = 8,759.28 : x
  2. Step 2: Convert to fraction form
    19,860.42/29,798.34 = 8,759.28/x
  3. Step 3: Cross multiply
    19,860.42x = 29,798.34 × 8,759.28
  4. Step 4: Simplify right side
    19,860.42x = 261,011,854.60
  5. Step 5: Solve for x
    x = 261,011,854.60/19,860.42
  6. Step 6: Final answer
    x = 13,142.32

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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.