Home / 19,890.04-27,448.24-10,938.14

Finding the Fourth Proportional to 19,890.04, 27,448.24 and 10,938.14

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Solution

The fourth proportional to 19,890.04, 27,448.24 and 10,938.14 is: 15,094.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.04 : 27,448.24 = 10,938.14 : x
  2. Step 2: Convert to fraction form
    19,890.04/27,448.24 = 10,938.14/x
  3. Step 3: Cross multiply
    19,890.04x = 27,448.24 × 10,938.14
  4. Step 4: Simplify right side
    19,890.04x = 300,232,691.87
  5. Step 5: Solve for x
    x = 300,232,691.87/19,890.04
  6. Step 6: Final answer
    x = 15,094.62

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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.