Home / 18,131.02-25,007.84-15,737.46

Finding the Fourth Proportional to 18,131.02, 25,007.84 and 15,737.46

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Solution

The fourth proportional to 18,131.02, 25,007.84 and 15,737.46 is: 21,706.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.02 : 25,007.84 = 15,737.46 : x
  2. Step 2: Convert to fraction form
    18,131.02/25,007.84 = 15,737.46/x
  3. Step 3: Cross multiply
    18,131.02x = 25,007.84 × 15,737.46
  4. Step 4: Simplify right side
    18,131.02x = 393,559,881.69
  5. Step 5: Solve for x
    x = 393,559,881.69/18,131.02
  6. Step 6: Final answer
    x = 21,706.44

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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.