Home / 26,653.40-39,980.29-18,308.12

Finding the Fourth Proportional to 26,653.40, 39,980.29 and 18,308.12

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Solution

The fourth proportional to 26,653.40, 39,980.29 and 18,308.12 is: 27,462.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,653.40 : 39,980.29 = 18,308.12 : x
  2. Step 2: Convert to fraction form
    26,653.40/39,980.29 = 18,308.12/x
  3. Step 3: Cross multiply
    26,653.40x = 39,980.29 × 18,308.12
  4. Step 4: Simplify right side
    26,653.40x = 731,964,001.14
  5. Step 5: Solve for x
    x = 731,964,001.14/26,653.40
  6. Step 6: Final answer
    x = 27,462.31

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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.