Home / 19,701.36-27,177.30-13,319.55

Finding the Fourth Proportional to 19,701.36, 27,177.30 and 13,319.55

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Solution

The fourth proportional to 19,701.36, 27,177.30 and 13,319.55 is: 18,373.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,701.36 : 27,177.30 = 13,319.55 : x
  2. Step 2: Convert to fraction form
    19,701.36/27,177.30 = 13,319.55/x
  3. Step 3: Cross multiply
    19,701.36x = 27,177.30 × 13,319.55
  4. Step 4: Simplify right side
    19,701.36x = 361,989,406.22
  5. Step 5: Solve for x
    x = 361,989,406.22/19,701.36
  6. Step 6: Final answer
    x = 18,373.83

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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.