Home / 55,634.88-83,451.56-13,515.28

Finding the Fourth Proportional to 55,634.88, 83,451.56 and 13,515.28

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Solution

The fourth proportional to 55,634.88, 83,451.56 and 13,515.28 is: 20,272.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,634.88 : 83,451.56 = 13,515.28 : x
  2. Step 2: Convert to fraction form
    55,634.88/83,451.56 = 13,515.28/x
  3. Step 3: Cross multiply
    55,634.88x = 83,451.56 × 13,515.28
  4. Step 4: Simplify right side
    55,634.88x = 1,127,871,199.84
  5. Step 5: Solve for x
    x = 1,127,871,199.84/55,634.88
  6. Step 6: Final answer
    x = 20,272.74

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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.