Home / 19,385.56-26,765.58-13,021.84

Finding the Fourth Proportional to 19,385.56, 26,765.58 and 13,021.84

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Solution

The fourth proportional to 19,385.56, 26,765.58 and 13,021.84 is: 17,979.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,385.56 : 26,765.58 = 13,021.84 : x
  2. Step 2: Convert to fraction form
    19,385.56/26,765.58 = 13,021.84/x
  3. Step 3: Cross multiply
    19,385.56x = 26,765.58 × 13,021.84
  4. Step 4: Simplify right side
    19,385.56x = 348,537,100.27
  5. Step 5: Solve for x
    x = 348,537,100.27/19,385.56
  6. Step 6: Final answer
    x = 17,979.21

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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.