Home / 25,905.09-38,831.49-10,100.25

Finding the Fourth Proportional to 25,905.09, 38,831.49 and 10,100.25

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Solution

The fourth proportional to 25,905.09, 38,831.49 and 10,100.25 is: 15,140.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,905.09 : 38,831.49 = 10,100.25 : x
  2. Step 2: Convert to fraction form
    25,905.09/38,831.49 = 10,100.25/x
  3. Step 3: Cross multiply
    25,905.09x = 38,831.49 × 10,100.25
  4. Step 4: Simplify right side
    25,905.09x = 392,207,756.87
  5. Step 5: Solve for x
    x = 392,207,756.87/25,905.09
  6. Step 6: Final answer
    x = 15,140.18

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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.