Home / 25,991.10-38,988.81-10,400.22

Finding the Fourth Proportional to 25,991.10, 38,988.81 and 10,400.22

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Solution

The fourth proportional to 25,991.10, 38,988.81 and 10,400.22 is: 15,601.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,991.10 : 38,988.81 = 10,400.22 : x
  2. Step 2: Convert to fraction form
    25,991.10/38,988.81 = 10,400.22/x
  3. Step 3: Cross multiply
    25,991.10x = 38,988.81 × 10,400.22
  4. Step 4: Simplify right side
    25,991.10x = 405,492,201.54
  5. Step 5: Solve for x
    x = 405,492,201.54/25,991.10
  6. Step 6: Final answer
    x = 15,601.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.