Home / 19,701.80-29,552.70-13,106.60

Finding the Fourth Proportional to 19,701.80, 29,552.70 and 13,106.60

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Solution

The fourth proportional to 19,701.80, 29,552.70 and 13,106.60 is: 19,659.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,701.80 : 29,552.70 = 13,106.60 : x
  2. Step 2: Convert to fraction form
    19,701.80/29,552.70 = 13,106.60/x
  3. Step 3: Cross multiply
    19,701.80x = 29,552.70 × 13,106.60
  4. Step 4: Simplify right side
    19,701.80x = 387,335,417.82
  5. Step 5: Solve for x
    x = 387,335,417.82/19,701.80
  6. Step 6: Final answer
    x = 19,659.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.