Home / 19,406.57-26,765.40-13,031.24

Finding the Fourth Proportional to 19,406.57, 26,765.40 and 13,031.24

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Solution

The fourth proportional to 19,406.57, 26,765.40 and 13,031.24 is: 17,972.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,406.57 : 26,765.40 = 13,031.24 : x
  2. Step 2: Convert to fraction form
    19,406.57/26,765.40 = 13,031.24/x
  3. Step 3: Cross multiply
    19,406.57x = 26,765.40 × 13,031.24
  4. Step 4: Simplify right side
    19,406.57x = 348,786,351.10
  5. Step 5: Solve for x
    x = 348,786,351.10/19,406.57
  6. Step 6: Final answer
    x = 17,972.59

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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.