Home / 20,070.12-27,711.54-18,577.38

Finding the Fourth Proportional to 20,070.12, 27,711.54 and 18,577.38

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Solution

The fourth proportional to 20,070.12, 27,711.54 and 18,577.38 is: 25,650.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,070.12 : 27,711.54 = 18,577.38 : x
  2. Step 2: Convert to fraction form
    20,070.12/27,711.54 = 18,577.38/x
  3. Step 3: Cross multiply
    20,070.12x = 27,711.54 × 18,577.38
  4. Step 4: Simplify right side
    20,070.12x = 514,807,808.97
  5. Step 5: Solve for x
    x = 514,807,808.97/20,070.12
  6. Step 6: Final answer
    x = 25,650.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.