Home / 25,831.16-35,657.82-21,872.76

Finding the Fourth Proportional to 25,831.16, 35,657.82 and 21,872.76

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Solution

The fourth proportional to 25,831.16, 35,657.82 and 21,872.76 is: 30,193.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,831.16 : 35,657.82 = 21,872.76 : x
  2. Step 2: Convert to fraction form
    25,831.16/35,657.82 = 21,872.76/x
  3. Step 3: Cross multiply
    25,831.16x = 35,657.82 × 21,872.76
  4. Step 4: Simplify right side
    25,831.16x = 779,934,938.98
  5. Step 5: Solve for x
    x = 779,934,938.98/25,831.16
  6. Step 6: Final answer
    x = 30,193.57

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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.