Home / 19,009.80-28,536.30-10,240.20

Finding the Fourth Proportional to 19,009.80, 28,536.30 and 10,240.20

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Solution

The fourth proportional to 19,009.80, 28,536.30 and 10,240.20 is: 15,371.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,009.80 : 28,536.30 = 10,240.20 : x
  2. Step 2: Convert to fraction form
    19,009.80/28,536.30 = 10,240.20/x
  3. Step 3: Cross multiply
    19,009.80x = 28,536.30 × 10,240.20
  4. Step 4: Simplify right side
    19,009.80x = 292,217,419.26
  5. Step 5: Solve for x
    x = 292,217,419.26/19,009.80
  6. Step 6: Final answer
    x = 15,371.94

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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.