Home / 23,128.68-34,646.01-18,456.60

Finding the Fourth Proportional to 23,128.68, 34,646.01 and 18,456.60

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Solution

The fourth proportional to 23,128.68, 34,646.01 and 18,456.60 is: 27,647.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,128.68 : 34,646.01 = 18,456.60 : x
  2. Step 2: Convert to fraction form
    23,128.68/34,646.01 = 18,456.60/x
  3. Step 3: Cross multiply
    23,128.68x = 34,646.01 × 18,456.60
  4. Step 4: Simplify right side
    23,128.68x = 639,447,548.17
  5. Step 5: Solve for x
    x = 639,447,548.17/23,128.68
  6. Step 6: Final answer
    x = 27,647.39

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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.