Home / 25,816.10-38,549.28-20,491.37

Finding the Fourth Proportional to 25,816.10, 38,549.28 and 20,491.37

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Solution

The fourth proportional to 25,816.10, 38,549.28 and 20,491.37 is: 30,598.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,816.10 : 38,549.28 = 20,491.37 : x
  2. Step 2: Convert to fraction form
    25,816.10/38,549.28 = 20,491.37/x
  3. Step 3: Cross multiply
    25,816.10x = 38,549.28 × 20,491.37
  4. Step 4: Simplify right side
    25,816.10x = 789,927,366.97
  5. Step 5: Solve for x
    x = 789,927,366.97/25,816.10
  6. Step 6: Final answer
    x = 30,598.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.