Home / 18,586.14-25,685.74-15,223.62

Finding the Fourth Proportional to 18,586.14, 25,685.74 and 15,223.62

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Solution

The fourth proportional to 18,586.14, 25,685.74 and 15,223.62 is: 21,038.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586.14 : 25,685.74 = 15,223.62 : x
  2. Step 2: Convert to fraction form
    18,586.14/25,685.74 = 15,223.62/x
  3. Step 3: Cross multiply
    18,586.14x = 25,685.74 × 15,223.62
  4. Step 4: Simplify right side
    18,586.14x = 391,029,945.18
  5. Step 5: Solve for x
    x = 391,029,945.18/18,586.14
  6. Step 6: Final answer
    x = 21,038.79

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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.