Home / 55,378.22-83,017.93-20,309.74

Finding the Fourth Proportional to 55,378.22, 83,017.93 and 20,309.74

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Solution

The fourth proportional to 55,378.22, 83,017.93 and 20,309.74 is: 30,446.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,378.22 : 83,017.93 = 20,309.74 : x
  2. Step 2: Convert to fraction form
    55,378.22/83,017.93 = 20,309.74/x
  3. Step 3: Cross multiply
    55,378.22x = 83,017.93 × 20,309.74
  4. Step 4: Simplify right side
    55,378.22x = 1,686,072,573.64
  5. Step 5: Solve for x
    x = 1,686,072,573.64/55,378.22
  6. Step 6: Final answer
    x = 30,446.49

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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.