Home / 20,741.84-31,098.08-9,636.72

Finding the Fourth Proportional to 20,741.84, 31,098.08 and 9,636.72

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Solution

The fourth proportional to 20,741.84, 31,098.08 and 9,636.72 is: 14,448.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.84 : 31,098.08 = 9,636.72 : x
  2. Step 2: Convert to fraction form
    20,741.84/31,098.08 = 9,636.72/x
  3. Step 3: Cross multiply
    20,741.84x = 31,098.08 × 9,636.72
  4. Step 4: Simplify right side
    20,741.84x = 299,683,489.50
  5. Step 5: Solve for x
    x = 299,683,489.50/20,741.84
  6. Step 6: Final answer
    x = 14,448.26

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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.