Home / 55,637.82-83,398.41-20,555.10

Finding the Fourth Proportional to 55,637.82, 83,398.41 and 20,555.10

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Solution

The fourth proportional to 55,637.82, 83,398.41 and 20,555.10 is: 30,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,637.82 : 83,398.41 = 20,555.10 : x
  2. Step 2: Convert to fraction form
    55,637.82/83,398.41 = 20,555.10/x
  3. Step 3: Cross multiply
    55,637.82x = 83,398.41 × 20,555.10
  4. Step 4: Simplify right side
    55,637.82x = 1,714,262,657.39
  5. Step 5: Solve for x
    x = 1,714,262,657.39/55,637.82
  6. Step 6: Final answer
    x = 30,811.10

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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.