Home / 45,686.12-68,511.90-17,969

Finding the Fourth Proportional to 45,686.12, 68,511.90 and 17,969

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Solution

The fourth proportional to 45,686.12, 68,511.90 and 17,969 is: 26,946.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,686.12 : 68,511.90 = 17,969 : x
  2. Step 2: Convert to fraction form
    45,686.12/68,511.90 = 17,969/x
  3. Step 3: Cross multiply
    45,686.12x = 68,511.90 × 17,969
  4. Step 4: Simplify right side
    45,686.12x = 1,231,090,331.10
  5. Step 5: Solve for x
    x = 1,231,090,331.10/45,686.12
  6. Step 6: Final answer
    x = 26,946.70

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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.