Home / 19,448.40-26,841.60-12,385.20

Finding the Fourth Proportional to 19,448.40, 26,841.60 and 12,385.20

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Solution

The fourth proportional to 19,448.40, 26,841.60 and 12,385.20 is: 17,093.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,448.40 : 26,841.60 = 12,385.20 : x
  2. Step 2: Convert to fraction form
    19,448.40/26,841.60 = 12,385.20/x
  3. Step 3: Cross multiply
    19,448.40x = 26,841.60 × 12,385.20
  4. Step 4: Simplify right side
    19,448.40x = 332,438,584.32
  5. Step 5: Solve for x
    x = 332,438,584.32/19,448.40
  6. Step 6: Final answer
    x = 17,093.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.