Home / 19,890.29-27,448.72-10,937.87

Finding the Fourth Proportional to 19,890.29, 27,448.72 and 10,937.87

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Solution

The fourth proportional to 19,890.29, 27,448.72 and 10,937.87 is: 15,094.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.29 : 27,448.72 = 10,937.87 : x
  2. Step 2: Convert to fraction form
    19,890.29/27,448.72 = 10,937.87/x
  3. Step 3: Cross multiply
    19,890.29x = 27,448.72 × 10,937.87
  4. Step 4: Simplify right side
    19,890.29x = 300,230,531.03
  5. Step 5: Solve for x
    x = 300,230,531.03/19,890.29
  6. Step 6: Final answer
    x = 15,094.33

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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.