Home / 20,686.59-31,030.02-5,104.22

Finding the Fourth Proportional to 20,686.59, 31,030.02 and 5,104.22

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Solution

The fourth proportional to 20,686.59, 31,030.02 and 5,104.22 is: 7,656.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,686.59 : 31,030.02 = 5,104.22 : x
  2. Step 2: Convert to fraction form
    20,686.59/31,030.02 = 5,104.22/x
  3. Step 3: Cross multiply
    20,686.59x = 31,030.02 × 5,104.22
  4. Step 4: Simplify right side
    20,686.59x = 158,383,893.53
  5. Step 5: Solve for x
    x = 158,383,893.53/20,686.59
  6. Step 6: Final answer
    x = 7,656.36

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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.