Home / 20,565.09-30,830.63-9,462.42

Finding the Fourth Proportional to 20,565.09, 30,830.63 and 9,462.42

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Solution

The fourth proportional to 20,565.09, 30,830.63 and 9,462.42 is: 14,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,565.09 : 30,830.63 = 9,462.42 : x
  2. Step 2: Convert to fraction form
    20,565.09/30,830.63 = 9,462.42/x
  3. Step 3: Cross multiply
    20,565.09x = 30,830.63 × 9,462.42
  4. Step 4: Simplify right side
    20,565.09x = 291,732,322.61
  5. Step 5: Solve for x
    x = 291,732,322.61/20,565.09
  6. Step 6: Final answer
    x = 14,185.80

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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.