Home / 18,803.21-25,889.22-14,312.57

Finding the Fourth Proportional to 18,803.21, 25,889.22 and 14,312.57

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Solution

The fourth proportional to 18,803.21, 25,889.22 and 14,312.57 is: 19,706.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,803.21 : 25,889.22 = 14,312.57 : x
  2. Step 2: Convert to fraction form
    18,803.21/25,889.22 = 14,312.57/x
  3. Step 3: Cross multiply
    18,803.21x = 25,889.22 × 14,312.57
  4. Step 4: Simplify right side
    18,803.21x = 370,541,273.50
  5. Step 5: Solve for x
    x = 370,541,273.50/18,803.21
  6. Step 6: Final answer
    x = 19,706.28

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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.