Home / 20,293.31-27,973.27-19,899.65

Finding the Fourth Proportional to 20,293.31, 27,973.27 and 19,899.65

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Solution

The fourth proportional to 20,293.31, 27,973.27 and 19,899.65 is: 27,430.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,293.31 : 27,973.27 = 19,899.65 : x
  2. Step 2: Convert to fraction form
    20,293.31/27,973.27 = 19,899.65/x
  3. Step 3: Cross multiply
    20,293.31x = 27,973.27 × 19,899.65
  4. Step 4: Simplify right side
    20,293.31x = 556,658,282.36
  5. Step 5: Solve for x
    x = 556,658,282.36/20,293.31
  6. Step 6: Final answer
    x = 27,430.63

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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.