Home / 19,890.33-27,448.86-10,937.90

Finding the Fourth Proportional to 19,890.33, 27,448.86 and 10,937.90

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Solution

The fourth proportional to 19,890.33, 27,448.86 and 10,937.90 is: 15,094.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.33 : 27,448.86 = 10,937.90 : x
  2. Step 2: Convert to fraction form
    19,890.33/27,448.86 = 10,937.90/x
  3. Step 3: Cross multiply
    19,890.33x = 27,448.86 × 10,937.90
  4. Step 4: Simplify right side
    19,890.33x = 300,232,885.79
  5. Step 5: Solve for x
    x = 300,232,885.79/19,890.33
  6. Step 6: Final answer
    x = 15,094.41

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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.