Home / 18,286.74-25,225.59-14,887.40

Finding the Fourth Proportional to 18,286.74, 25,225.59 and 14,887.40

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Solution

The fourth proportional to 18,286.74, 25,225.59 and 14,887.40 is: 20,536.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.74 : 25,225.59 = 14,887.40 : x
  2. Step 2: Convert to fraction form
    18,286.74/25,225.59 = 14,887.40/x
  3. Step 3: Cross multiply
    18,286.74x = 25,225.59 × 14,887.40
  4. Step 4: Simplify right side
    18,286.74x = 375,543,602.01
  5. Step 5: Solve for x
    x = 375,543,602.01/18,286.74
  6. Step 6: Final answer
    x = 20,536.39

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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.