Home / 21,655.61-32,486.82-9,175.71

Finding the Fourth Proportional to 21,655.61, 32,486.82 and 9,175.71

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Solution

The fourth proportional to 21,655.61, 32,486.82 and 9,175.71 is: 13,765.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.61 : 32,486.82 = 9,175.71 : x
  2. Step 2: Convert to fraction form
    21,655.61/32,486.82 = 9,175.71/x
  3. Step 3: Cross multiply
    21,655.61x = 32,486.82 × 9,175.71
  4. Step 4: Simplify right side
    21,655.61x = 298,089,639.14
  5. Step 5: Solve for x
    x = 298,089,639.14/21,655.61
  6. Step 6: Final answer
    x = 13,765.01

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1.5x scale

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.