Home / 22,031.60-32,837.40-20,786.22

Finding the Fourth Proportional to 22,031.60, 32,837.40 and 20,786.22

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Solution

The fourth proportional to 22,031.60, 32,837.40 and 20,786.22 is: 30,981.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,031.60 : 32,837.40 = 20,786.22 : x
  2. Step 2: Convert to fraction form
    22,031.60/32,837.40 = 20,786.22/x
  3. Step 3: Cross multiply
    22,031.60x = 32,837.40 × 20,786.22
  4. Step 4: Simplify right side
    22,031.60x = 682,565,420.63
  5. Step 5: Solve for x
    x = 682,565,420.63/22,031.60
  6. Step 6: Final answer
    x = 30,981.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.