Home / 19,558.40-26,982.12-13,090.28

Finding the Fourth Proportional to 19,558.40, 26,982.12 and 13,090.28

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Solution

The fourth proportional to 19,558.40, 26,982.12 and 13,090.28 is: 18,058.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,558.40 : 26,982.12 = 13,090.28 : x
  2. Step 2: Convert to fraction form
    19,558.40/26,982.12 = 13,090.28/x
  3. Step 3: Cross multiply
    19,558.40x = 26,982.12 × 13,090.28
  4. Step 4: Simplify right side
    19,558.40x = 353,203,505.79
  5. Step 5: Solve for x
    x = 353,203,505.79/19,558.40
  6. Step 6: Final answer
    x = 18,058.92

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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.