Home / 20,253.65-27,938.81-11,868.53

Finding the Fourth Proportional to 20,253.65, 27,938.81 and 11,868.53

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Solution

The fourth proportional to 20,253.65, 27,938.81 and 11,868.53 is: 16,371.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,253.65 : 27,938.81 = 11,868.53 : x
  2. Step 2: Convert to fraction form
    20,253.65/27,938.81 = 11,868.53/x
  3. Step 3: Cross multiply
    20,253.65x = 27,938.81 × 11,868.53
  4. Step 4: Simplify right side
    20,253.65x = 331,592,545.31
  5. Step 5: Solve for x
    x = 331,592,545.31/20,253.65
  6. Step 6: Final answer
    x = 16,371.99

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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.