Home / 25,831.02-35,645.64-15,757.86

Finding the Fourth Proportional to 25,831.02, 35,645.64 and 15,757.86

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Solution

The fourth proportional to 25,831.02, 35,645.64 and 15,757.86 is: 21,745.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,831.02 : 35,645.64 = 15,757.86 : x
  2. Step 2: Convert to fraction form
    25,831.02/35,645.64 = 15,757.86/x
  3. Step 3: Cross multiply
    25,831.02x = 35,645.64 × 15,757.86
  4. Step 4: Simplify right side
    25,831.02x = 561,699,004.73
  5. Step 5: Solve for x
    x = 561,699,004.73/25,831.02
  6. Step 6: Final answer
    x = 21,745.13

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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.