Home / 55,427.47-83,149.41-20,364.39

Finding the Fourth Proportional to 55,427.47, 83,149.41 and 20,364.39

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Solution

The fourth proportional to 55,427.47, 83,149.41 and 20,364.39 is: 30,549.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,427.47 : 83,149.41 = 20,364.39 : x
  2. Step 2: Convert to fraction form
    55,427.47/83,149.41 = 20,364.39/x
  3. Step 3: Cross multiply
    55,427.47x = 83,149.41 × 20,364.39
  4. Step 4: Simplify right side
    55,427.47x = 1,693,287,170.47
  5. Step 5: Solve for x
    x = 1,693,287,170.47/55,427.47
  6. Step 6: Final answer
    x = 30,549.60

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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.