Home / 15,484.39-23,109.57-13,989.71

Finding the Fourth Proportional to 15,484.39, 23,109.57 and 13,989.71

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Solution

The fourth proportional to 15,484.39, 23,109.57 and 13,989.71 is: 20,878.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,484.39 : 23,109.57 = 13,989.71 : x
  2. Step 2: Convert to fraction form
    15,484.39/23,109.57 = 13,989.71/x
  3. Step 3: Cross multiply
    15,484.39x = 23,109.57 × 13,989.71
  4. Step 4: Simplify right side
    15,484.39x = 323,296,240.30
  5. Step 5: Solve for x
    x = 323,296,240.30/15,484.39
  6. Step 6: Final answer
    x = 20,878.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.