Home / 19,370.10-26,731.62-15,171.06

Finding the Fourth Proportional to 19,370.10, 26,731.62 and 15,171.06

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Solution

The fourth proportional to 19,370.10, 26,731.62 and 15,171.06 is: 20,936.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,370.10 : 26,731.62 = 15,171.06 : x
  2. Step 2: Convert to fraction form
    19,370.10/26,731.62 = 15,171.06/x
  3. Step 3: Cross multiply
    19,370.10x = 26,731.62 × 15,171.06
  4. Step 4: Simplify right side
    19,370.10x = 405,547,010.92
  5. Step 5: Solve for x
    x = 405,547,010.92/19,370.10
  6. Step 6: Final answer
    x = 20,936.75

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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.